Frailty modifies the intervention effect of chair yoga on pain among older adults with lower extremity osteoarthritis: Secondary analysis of a nonpharmacological intervention trial
Park J , Sherman DG , Agogo G , Hoogendijk EO , Liu Z . Exp Gerontol 2020 134 110886 OBJECTIVE: In an 8-week nonpharmacological pain intervention trial among older adults with lower extremity osteoarthritis (OA), we aimed to examine: a) the baseline frailty level of the participants; b) whether such intervention is more beneficial for baseline frailer older adults than for their counterparts with less frailty; and c) whether the intervention could also alter frailty. METHODS: Participants were randomly assigned to either chair yoga (CY) or health education program (HEP) groups and attended twice-weekly 45-minute CY or HEP sessions for 8weeks. Following a standard procedure, 82 variables were used to construct a frailty index (FI, 0-1). Primary outcomes were: Western Ontario and McMaster Universities (WOMAC) pain and pain interference. Linear mixed-effects models were used to evaluate the modifying effect of baseline frailty on the intervention effect of CY on primary outcomes. Similar models were used to evaluate the effect of CY on frailty. RESULTS: A total of 112 participants (n=63 CY, n=49 HEP; 75.3 [SD=7.5] years) with 85 females (75.9%) were included. The mean values of baseline FI for the CY and HEP groups were similar (0.428 [0.05] and 0.433 [0.05], P=0.355). Each 0.01 increment in baseline FI was associated with higher WOMAC pain (beta=0.28, P<0.001) and pain interference (beta=0.51, P<0.001). There was a significant interaction effect between intervention, time, and baseline FI (P=0.020 for WOMAC pain; P=0.010 for pain interference), indicating that participants with higher level of baseline FI had greater declines in WOMAC pain and pain interference. There was no significantly greater decline in FI for the CY group compared to the HEP group (between-group difference-0.01; P=0.509) and there were no significant trend changes in FI (P for interaction=0.605). CONCLUSIONS: Frailty modifies the intervention effect of CY on pain among older adults with lower extremity OA, underscoring the importance of assessing frailty to improve the management of pain in this population. |
Screening for lung cancer - 10 states, 2017
Richards TB , Soman A , Thomas CC , VanFrank B , Henley SJ , Gallaway MS , Richardson LC . MMWR Morb Mortal Wkly Rep 2020 69 (8) 201-206 Lung cancer is the leading cause of cancer death in the United States; 148,869 lung cancer-associated deaths occurred in 2016 (1). Mortality might be reduced by identifying lung cancer at an early stage when treatment can be more effective (2). In 2013, the U.S. Preventive Services Task Force (USPSTF) recommended annual screening for lung cancer with low-dose computed tomography (CT) for adults aged 55-80 years who have a 30 pack-year smoking history and currently smoke or have quit within the past 15 years (2).(dagger) This was a Grade B recommendation, which required health insurance plans to cover lung cancer screening as a preventive service.( section sign) To assess the prevalence of lung cancer screening by state, CDC used Behavioral Risk Factor Surveillance System (BRFSS) data( paragraph sign) collected in 2017 by 10 states. Overall, 12.7% adults aged 55-80 years met the USPSTF criteria for lung cancer screening. Among those meeting USPSTF criteria, 12.5% reported they had received a CT scan to check for lung cancer in the last 12 months. Efforts to educate health care providers and provide decision support tools might increase recommended lung cancer screening. |
Antineoplastic drugs prescription during visits by adult cancer patients with comorbidities: findings from the 2010-2016 National Ambulatory Medical Care Survey
Santo L , Ward BW , Rui P , Ashman JJ . Cancer Causes Control 2020 31 (4) 353-363 PURPOSE: Cancer treatment may be affected by comorbidities; however, studies are limited. The purpose of this study is to examine the frequency of comorbidities at visits by patients with breast, prostate, colorectal, and lung cancer and to estimate frequency of a prescription for antineoplastic drugs being included in the treatment received at visits by patients with cancer and concomitant comorbidities. METHODS: We used nationally representative data on visits to office-based physicians from the 2010-2016 National Ambulatory Medical Care Survey and selected visits by adults with breast, prostate, colorectal, or lung cancer (n = 4,672). Nineteen comorbid conditions were examined. Descriptive statistics were calculated for visits by cancer patients with 0, 1, and >/= 2 comorbidities. RESULTS: From 2010-2016, a total of 10.2 million physician office visits were made annually by adult patients with breast, prostate, colorectal, or lung cancer. Among US visits by adult patients with breast, prostate, colorectal, or lung cancer, 56.3% were by patients with >/= 1 comorbidity. Hypertension was the most frequently observed comorbidity (37.7%), followed by hyperlipidemia (19.0%) and diabetes (12.3%). Antineoplastic drugs were prescribed in 33.5% of the visits and prescribed at a lower percentage among visits by cancer patients with COPD (21.3% versus 34.3% of visits by cancer patients without COPD) and heart disease (22.7% versus 34.2% of visits by cancer patients without heart disease). CONCLUSION: Our study provides information about comorbidities in cancer patients being treated by office-based physicians in an ambulatory setting. |
Results of a Pilot Study of a Mail-Based Human Papillomavirus Self-Testing Program for Underscreened Women From Appalachian Ohio.
Reiter PL , Shoben AB , McDonough D , Ruffin MT , Steinau M , Unger ER , Paskett ED , Katz ML . Sex Transm Dis 2019 46 (3) 185-190 BACKGROUND: Human papillomavirus (HPV) self-testing is an emerging cervical cancer screening strategy, yet few mail-based HPV self-testing programs have been implemented in the United States. We report the results of a pilot study of a mail-based program, the Health Outcomes through Motivation and Education Project. METHODS: In 2015 to 2016, we recruited 103 women from Appalachian Ohio who were aged 30 to 65 years and had not received a Papanicolaou (Pap) test in at least 3 years. Women were mailed an HPV self-test and randomized to receive either (a) self-test instructions developed by the device manufacturer and a standard information brochure about cervical cancer (control group) or (b) self-test instructions developed by the Health Outcomes through Motivation and Education Project and a photo story information brochure about cervical cancer (intervention group). Logistic regression compared study arms on HPV self-test return and receipt of a Pap test. RESULTS: Overall, 80 (78%) women returned their HPV self-test. Return was similar among the intervention and control groups (78% vs. 77%; odds ratio, 1.09; 95% confidence interval, 0.43-2.76). Among returners, 26% had an oncogenic HPV type detected in their sample. Women who returned their self-test reported high levels of satisfaction and positive experiences with the self-testing process. Few women overall received a Pap test (11%), and Pap testing was similar among the intervention and control groups (14% vs. 8%; odds ratio, 1.91; 95% confidence interval, 0.52-6.97). CONCLUSIONS: Mail-based HPV self-testing programs are a potentially promising strategy for reaching underscreened women in Appalachia. Efforts are needed to better understand how to optimize the success of such programs. |
High prevalence of integrase mutation L74I in West African HIV-1 subtypes prior to integrase inhibitor treatment.
El Bouzidi K , Kemp SA , Datir RP , Murtala-Ibrahim F , Aliyu A , Kwaghe V , Frampton D , Roy S , Breuer J , Sabin CA , Ogbanufe O , Charurat ME , Bonsall D , Golubchik T , Fraser C , Dakum P , Ndembi N , Gupta RK . J Antimicrob Chemother 2020 75 (6) 1575-1579 OBJECTIVES: HIV-1 integrase inhibitors are recommended as first-line therapy by WHO, though efficacy and resistance data for non-B subtypes are limited. Two recent trials have identified the integrase L74I mutation to be associated with integrase inhibitor treatment failure in HIV-1 non-B subtypes. We sought to define the prevalence of integrase resistance mutations, including L74I, in West Africa. METHODS: We studied a Nigerian cohort of recipients prior to and during receipt of second-line PI-based therapy, who were integrase inhibitor-naive. Illumina next-generation sequencing with target enrichment was used on stored plasma samples. Drug resistance was interpreted using the Stanford Resistance Database and the IAS-USA 2019 mutation lists. RESULTS: Of 115 individuals, 59.1% harboured CRF02_AG HIV-1 and 40.9% harboured subtype G HIV-1. Four participants had major IAS-USA integrase resistance-associated mutations detected at low levels (2%-5% frequency). Two had Q148K minority variants and two had R263K (one of whom also had L74I). L74I was detected in plasma samples at over 2% frequency in 40% (46/115). Twelve (26.1%) had low-level minority variants of between 2% and 20% of the viral population sampled. The remaining 34 (73.9%) had L74I present at >20% frequency. L74I was more common among those with subtype G infection (55.3%, 26/47) than those with CRF02_AG infection (29.4%, 20/68) (P = 0.005). CONCLUSIONS: HIV-1 subtypes circulating in West Africa appear to have very low prevalence of major integrase mutations, but significant prevalence of L74I. A combination of in vitro and clinical studies is warranted to understand the potential implications. |
Mumps: an Update on Outbreaks, Vaccine Efficacy, and Genomic Diversity.
Lam E , Rosen JB , Zucker JR . Clin Microbiol Rev 2020 33 (2) SUMMARYMumps is an acute viral infection characterized by inflammation of the parotid and other salivary glands. Persons with mumps are infectious from 2 days before through 5 days after parotitis onset, and transmission is through respiratory droplets. Despite the success of mumps vaccination programs in the United States and parts of Europe, a recent increase in outbreaks of mumps virus infections among fully vaccinated populations has been reported. Although the effectiveness of the mumps virus component of the measles-mumps-rubella (MMR) vaccine is suboptimal, a range of contributing factors has led to these outbreaks occurring in high-vaccination-coverage settings, including the intensity of exposure, the possibility of vaccine strain mismatch, delayed implementation of control measures due to the timeliness of reporting, a lack of use of appropriate laboratory tests (such as reverse transcription-PCR), and time since last vaccination. The resurgence of mumps virus infections among previously vaccinated individuals over the past decade has prompted discussions about new strategies to mitigate the risk of future outbreaks. The decision to implement a third dose of the MMR vaccine in response to an outbreak should be considered in discussions with local public health agencies. Traditional public health measures, including the isolation of infectious persons, timely contact tracing, and effective communication and awareness education for the public and medical community, should remain key interventions for outbreak control. Maintaining high mumps vaccination coverage remains key to U.S. and global efforts to reduce disease incidence and rates of complications. |
Identification of an Emergent Pathogen, Bartonella vinsonii, Using Next-Generation Sequencing in a Patient With Culture-Negative Endocarditis.
Downey RD , Russo SM , Hauger SB , Murphey DK , Marx G , Huynh T , Denison AM , Quirt R , Bailey A , Fernandez M . J Pediatric Infect Dis Soc 2020 10 (2) 213-216 Diagnosis and treatment of culture negative endocarditis remains a challenge. This report describes a rare cause of endocarditis in humans, Bartonella vinsonii, identified through next generation sequencing of plasma microbial cell-free DNA with confirmation of cardiac valve tissue infection through immunohistochemical staining and polymerase chain reaction. |
Associations between enteric pathogen carriage and height-for-age, weight-for-age and weight-for-height in children under 5 years old in urban Dhaka, Bangladesh
Berendes D , Capone D , Knee J , Holcomb D , Sultana S , Pickering AJ , Brown J . Epidemiol Infect 2020 148 e39 Nutritional factors and infectious agents may contribute to paediatric growth deficits in low- and middle-income countries; however, the contribution of enteric pathogens is only beginning to be understood. We analysed the stool from children <5 years old from an open cohort, cluster-randomised controlled trial of a point-of-collection water chlorinator in urban Bangladesh. We compared the presence/absence of 15 enteric pathogens detected via multiplex, molecular methods in the stool with concurrent Z-scores/Z-score cut-offs (-2 standard deviations (s.d.)) for height-for-age (HAZ/stunting), weight-for-age (WAZ/underweight) and weight-for-height (WHZ/wasting), adjusted for sociodemographic and trial-related factors, and measured caregiver-reported diarrhoea. Enteric pathogen prevalence in the stool was high (88% had >/=1 enteric pathogen, most commonly Giardia spp. (40%), Salmonella enterica (33%), enterotoxigenic E. coli (28%) and Shigella spp. (27%)) while reported 7-day diarrhoea prevalence was 6%, suggesting high subclinical infection rates. Many children were stunted (26%) or underweight (24%). Adjusted models suggested Giardia spp. detection was associated with lower HAZ (-0.22 s.d., 95% CI -0.44 to 0.00; prevalence ratio for stunting: 1.39, 95% CI 0.94-2.06) and potentially lower WAZ. No pathogens were associated with reported diarrhoea in adjusted models. Giardia spp. carriage may be associated with growth faltering, but not diarrhoea, in this and similar low-income settings. Stool-based enteric pathogen detection provides a direct indication of previous exposure that may be useful as a broader endpoint of trials of environmental interventions. |
Case management and capacity building to enhance hepatitis C treatment uptake at community health centers in a large urban setting
Boodram B , Kaufmann M , Aronsohn A , Hamlish T , Peregrine Antalis E , Kim K , Wolf J , Rodriguez I , Millman AJ , Johnson D . Fam Community Health 2020 43 (2) 150-160 An estimated 4.1 million people in the United States are infected with hepatitis C virus (HCV). In 2014, the Hepatitis C Community Alliance to Test and Treat (HepCCATT) collaborative was formed to address hepatitis C in Chicago. From 2014 to 2017, the HepCCATT Case Management Program case managed 181 HCV-infected people and performed on-site capacity building at a 6-site community health center (CHC) that produced codified protocols, which were translated into a telehealth program to build capacity within CHCs to deliver hepatitis C care. HepCCATT's innovative approach to addressing multilevel barriers is a potential model for increasing access to hepatitis C care and treatment. |
Viral rebound among persons with diagnosed HIV who achieved viral suppression, United States
Craw JA , Beer L , Tie Y , Jaenicke T , Shouse RL , Prejean J . J Acquir Immune Defic Syndr 2020 84 (2) 133-140 BACKGROUND: Some persons who achieve viral suppression may later experience viral rebound, potentially putting them at risk for transmitting HIV. We estimate the prevalence of, and describe factors associated with, viral rebound among adults with diagnosed HIV in the United States who had >/=2 viral load tests in a 12-month period. SETTING: The Medical Monitoring Project (MMP) is an annual cross-sectional survey about the experiences and needs of adults with diagnosed HIV sampled from the National HIV Surveillance System (NHSS). METHODS: We analyzed interview and medical record data from three MMP cycles spanning June 2015-May 2018. We analyzed viral load results from the 12-month period before the interview among persons with >/=2 viral load tests who achieved viral suppression. Data were weighted based on known probabilities of selection, adjusted for patient nonresponse, and post-stratified to known population totals from NHSS. RESULTS: Among those with >/=2 viral load tests who achieved viral suppression, 7.5% demonstrated viral rebound. In multivariable analyses, viral rebound was higher among non-Hispanic blacks, persons ages 18-39, persons with public insurance, persons recently experiencing homelessness, persons with higher numbers of viral load tests, persons who missed HIV care appointments, and persons with sub-optimal adherence to antiretroviral therapy. CONCLUSIONS: Viral rebound varied by sociodemographic and clinical characteristics. HIV providers can monitor persons at greatest risk for viral rebound and link patients with ancillary services or evidence-based interventions to help them remain virally suppressed. Our findings can inform strategies and interventions implemented under the Ending the HIV Epidemic initiative. |
Ending the HIV epidemic in the United States
Demeke HB , McCray E , Dean HD . Am J Nurs 2020 120 (3) 21-22 A new initiative aims to reduce new infections by 75% within five years. |
Efficient transmission of viral gastroenteritis in Dutch households
Gastanaduy PA , Parashar UD . Lancet Infect Dis 2020 20 (5) 519-520 Community cohorts of acute gastroenteritis, such as the one presented by Franke Quee and colleagues1 in The Lancet Infectious Diseases, provide a crucial opportunity to understand the epidemiology and transmission dynamics of different enteric viruses that could be targeted to prevent diarrhoea in vulnerable populations. | | Diarrhoeal illnesses remain a principal cause of morbidity and mortality among young children across the world, accounting for over half a million childhood deaths each year. Undoubtedly, the two most important non-bacterial pathogens causing acute gastroenteritis are rotavirus and norovirus. Most children acquire long-lasting immunity against rotavirus after experiencing repeated infections during infancy;2 consequently, the burden of severe rotavirus acute gastroenteritis is focused in young children, and in adulthood, rotavirus illnesses are either mild or subclinical. Conversely, immunity to noroviruses appears to be genotype specific and of short duration; hence, people of all ages are affected by norovirus acute gastroenteritis.3 |
What do the Universal Test and Treat trials tell us about the path to HIV epidemic control
Havlir D , Lockman S , Ayles H , Larmarange J , Chamie G , Gaolathe T , Iwuji C , Fidler S , Kamya M , Floyd S , Moore J , Hayes R , Petersen M , Dabis F . J Int AIDS Soc 2020 23 (2) e25455 INTRODUCTION: Achieving HIV epidemic control globally will require new strategies to accelerate reductions in HIV incidence and mortality. Universal test and treat (UTT) was evaluated in four randomized population-based trials (BCPP/Ya Tsie, HPTN 071/PopART, SEARCH, ANRS 12249/TasP) conducted in sub-Saharan Africa (SSA) during expanded antiretroviral treatment (ART) eligibility by World Health Organization guidelines and the UNAIDS 90-90-90 campaign. DISCUSSION: These three-year studies were conducted in Botswana, Zambia, Uganda, Kenya and South Africa in settings with baseline HIV prevalence from 4% to 30%. Key observations across studies were: (1) Universal testing (implemented via a variety of home and community-based testing approaches) achieved >90% coverage in all studies. (2) When coupled with robust linkage to HIV care, rapid ART start and patient-centred care, UTT achieved among the highest reported population levels of viral suppression in SSA. Significant gains in population-level viral suppression were made in regions with both low and high baseline population viral load; however, viral suppression gains were not uniform across all sub-populations and were lower among youth. (3) UTT resulted in marked reductions in community HIV incidence when universal testing and robust linkage were present. However, HIV elimination targets were not reached. In BCPP and HPTN 071, annualized HIV incidence was approximately 20% to 30% lower in the intervention (which included universal testing) compared to control arms (no universal testing). In SEARCH (where both arms had universal testing), incidence declined 32% over three years. (4) UTT reduced HIV associated mortality by 23% in the intervention versus control communities in SEARCH, a study in which mortality was comprehensively measured. CONCLUSIONS: These trials provide strong evidence that UTT inclusive of universal testing increases population-level viral suppression and decreases HIV incidence and mortality faster than the status quo in SSA and should be adapted at a sub-country level as a public health strategy. However, more is needed, including integration of new prevention interventions into UTT, in order to reach UNAIDS HIV elimination targets. |
Advances in clinical trial design: Weaving tomorrow's TB treatments
Lienhardt C , Nunn A , Chaisson R , Vernon AA , Zignol M , Nahid P , Delaporte E , Kasaeva T . PLoS Med 2020 17 (2) e1003059 Christian Lienhardt and co-authors discuss the conclusions of the PLOS Medicine Collection on advances in clinical trial design for development of new tuberculosis treatments. |
A decade on: Follow-up findings of indigenous children with bronchiectasis
McCallum GB , Singleton RJ , Redding GJ , Grimwood K , Byrnes CA , Valery PC , Mobberley C , Oguoma VM , Eg KP , Morris PS , Chang AB . Pediatr Pulmonol 2020 55 (4) 975-985 OBJECTIVE: The sole prospective longitudinal study of children with either chronic suppurative lung disease (CSLD) or bronchiectasis published in the current era was limited to a single center. We sought to extend this study by evaluating the longer-term clinical and lung function outcomes and their associated risk factors in Indigenous children of adolescents from Australia, Alaska, and New Zealand who participated in our previous CSLD or bronchiectasis studies during 2004-2010. METHODS: Between 2015 and 2018, we evaluated 131 out of 180 (72.8%) children of adolescents from the original studies at a single follow-up visit. We administered standardized questionnaires, reviewed medical records, undertook clinical examinations, performed spirometry, and scored available chest computed tomography scans. RESULTS: Participants were seen at a mean age of 12.3 years (standard deviation: 2.6) and a median of 9.0 years (range: 5.0-13.0) after their original recruitment. With increasing age, rates of acute lower respiratory infections (ALRI) declined, while lung function was mostly within population norms (median forced expiry volume in one-second = 90% predicted, interquartile range [IQR]: 81-105; forced vital capacity [FVC] = 98% predicted, IQR: 85-114). However, 43 out of 111 (38.7%) reported chronic cough episodes. Their overall global rating judged by symptoms, including ALRI frequency, examination findings, and spirometry was well (20.3%), stable (43.9%), or improved (35.8%). Multivariable regression identified household tobacco exposure and age at first ALRI-episode as independent risk factors associated with lower FVC% predicted values. CONCLUSION: Under our clinical care, the respiratory outcomes in late childhood or early adolescence are encouraging for these patient populations at high-risk of premature mortality. Prospective studies to further inform management throughout the life course into adulthood are now needed. |
Toward universal HIV treatment in Haiti: Time trends in ART retention following expanded ART eligibility in a national cohort from 2011-17
Puttkammer N , Parrish C , Desir Y , Hyppolite N , Wagenaar B , Joseph N , Hall L , Honore JG , Robin E , Perrin G , Francois K . J Acquir Immune Defic Syndr 2020 84 (2) 153-161 BACKGROUND: The World Health Organization (WHO) recommends universal antiretroviral therapy (ART) for people living with HIV (PLWH), but evidence about effects of expanded ART access on ART retention in low-resource settings is limited. SETTING: Haiti's Ministry of Health endorsed universal ART for pregnant women in March 2013 (Option B+) and for all PLWH in July 2016. This study included 51,579 ART patients from 2011-17 at 94 hospitals and clinics in Haiti. METHODS: This observational, retrospective cohort study described time trends in 6-month ART retention using secondary data, and compared results during three time periods using an interrupted time series (ITS) model: pre-Option B+ (period 1: 1/11-2/13), Option B+ (period 2: 3/13-6/16), and Test and Start (T&S, period 3: 7/16-9/17). RESULTS: From the pre-Option B+ to the T&S period, the monthly count of new ART patients increased from 366/month to 877/month, and the proportion with same-day ART increased from 6.3% to 42.1% (p<0.001). The proportion retained on ART after 6 months declined from 78.4% to 75.0% (p<0.001). In the ITS model, ART retention improved by a rate of 1.4% per quarter during the T&S period after adjusting for patient characteristics (Adjusted Incidence Rate Ratio [aIRR]=1.014; 95% confidence interval [CI]: 1.002-1.026, p<0.001). However, patients with same-day ART were 14% less likely to be retained compared to those starting ART >30 days after HIV diagnosis (aIRR=0.86; 95% CI: 0.84-0.89, p<0.001). CONCLUSION: Achieving targets for HIV epidemic control will require increasing ART retention and reducing the disparity in retention for those with same-day ART. |
Prevalence of self-reported neurologic and ocular symptoms in early syphilis cases
Quilter LAS , de Voux A , Amiya RM , Davies E , Hennessy RR , Kerani RP , Madera R , Matthias J , Pearson VM , Walters JK , Wilson C , Kidd S , Torrone E . Clin Infect Dis 2020 72 (6) 961-967 BACKGROUND: Neurosyphilis, a complication of syphilis, can occur at any stage of infection. Measuring the prevalence of neurosyphilis is challenging and there are limited data on the prevalence of neurologic or ocular symptoms among patients with syphilis. We sought to describe the prevalence of neurologic and/or ocular symptoms among early syphilis (ES) cases and the clinical management of symptomatic cases enrolled in the STD Surveillance Network (SSuN) Neuro/Ocular Syphilis Surveillance project. METHODS: Persons diagnosed with ES were selected for interviews based on current health department protocols in five participating SSuN jurisdictions from November 2016-October 2017. All interviewed ES cases were screened for self-reported neurologic and/or ocular symptoms. Additional clinical information on diagnostic testing and treatment for cases concerning for neurosyphilis/ocular syphilis was obtained from providers. RESULTS: Among 9,123 patients with ES who were interviewed, 151 (1.7%, 95% CI: 1.4-1.9) reported >/=1 neurologic or ocular symptom. Of the 53 (35%) who underwent lumbar puncture (LP), 22 (42%) had documented abnormal cerebrospinal fluid, of which 21 (95%) were treated for neurosyphilis/ocular syphilis. Among the remaining 98 symptomatic patients with no documented LP (65%), 12 (12%) were treated for and/or clinically diagnosed with neurosyphilis/ocular syphilis. CONCLUSIONS: We observed a low prevalence of self-reported neurologic and/or ocular symptoms in interviewed ES cases. Approximately one-third of ES cases who self-reported symptoms underwent further recommended diagnostic evaluation. Understanding barriers to appropriate clinical evaluation is important to ensuring appropriate management of patients with possible neurologic and/or ocular manifestations of syphilis. |
Hospital discharge data underascertain enteric bacterial infections among children
Scallan Walter EJ , McLean HQ , Griffin PM . Foodborne Pathog Dis 2020 17 (9) 530-532 Many enteric pathogens disproportionately infect children. Hospital discharge data can provide information on severe infections, including cost. However, the diagnosis must be recorded on the discharge record and coded accurately. We estimated the rate of underascertainment in hospital discharge data among children with culture-confirmed Campylobacter, Salmonella, and Escherichia coli O157 infections using linked laboratory and hospital discharge data from an integrated health care organization. We reviewed the International Classification of Diseases, 9th and 10th Revisions, Clinical Modification (ICD-9/10-CM) diagnosis codes on each patient's discharge record. We determined the percentage of patients who had a pathogen-specific diagnosis code (for Campylobacter, Salmonella, or E. coli O157) or nonspecific gastroenteritis code. We included the first admission or positive test and calculated the number of days between specimen submission (outpatient </=7 days before admission or inpatient) and hospital discharge. Of 65 hospitalized children with culture-confirmed Campylobacter (n = 30), Salmonella (n = 24), or E. coli O157 (n = 11) infections, 55% had that pathogen-specific diagnosis code listed on the discharge record (79% Salmonella, 54% E. coli O157, 37% Campylobacter). The discharge records of the 35 children with a specimen submitted for culture >/=3 days before discharge were 16 times more likely to have a pathogen-specific diagnosis than the records of the 30 children with a specimen submitted <3 days before discharge (83% vs. 23%; odds ratio 15.9, 95% confidence interval: 4.7-53.8). Overall, 34% of records of children with culture-confirmed infection had >/=1 nonspecific gastroenteritis code (Campylobacter 43%, Salmonella 29%, E. coli O157 18%), including 59% of those for children without a pathogen-specific diagnosis (Campylobacter 63%; Salmonella 60%; E. coli O157 40%). This study showed that hospital discharge data under-ascertain enteric illnesses in children even when the infections are culture confirmed, especially for infections that usually have a short length of stay. |
Fatal case of Legionnaires' disease after home exposure to Legionella pneumophila serogroup 3 - Wisconsin, 2018
Schumacher A , Kocharian A , Koch A , Marx J . MMWR Morb Mortal Wkly Rep 2020 69 (8) 207-211 In January 2018, the Wisconsin Department of Health Services, Division of Public Health (DPH), received a report of a culture-confirmed case of Legionnaires' disease. The patient, who was immunocompromised, had died at a local hospital 10 days after being admitted. DPH and an infection preventionist from the hospital investigated to determine the source of the infection and prevent additional cases. Because the case was suspected to be nosocomial, health care facility water samples were tested for Legionella. When these samples were negative, water sources in the patient's home were tested. These tested positive for Legionella pneumophila, and the bacteria remained after an attempt to remediate. The patient and home isolates were identified as L. pneumophila serogroup 3, sequence type 93, by whole-genome multilocus sequence typing. A second resident of the home did not become ill. This case highlights the potential for immunocompromised persons and others at risk for Legionnaires' disease to be exposed to Legionella through home water systems containing the bacteria and demonstrates the difficulty of home remediation. This case also illustrates the role of lower respiratory tract specimens in the identification of less common Legionella infections (e.g., L. pneumophila serogroup 3) and confirmation of the infection source. |
Evidence of an association of increases in pre-exposure prophylaxis coverage with decreases in human immunodeficiency virus diagnosis rates in the United States, 2012-2016
Smith DK , Sullivan PS , Cadwell B , Waller LA , Siddiqi A , Mera-Giler R , Hu X , Hoover KW , Harris NS , McCallister S . Clin Infect Dis 2020 71 (12) 3144-3151 BACKGROUND: Annual human immunodeficiency virus (HIV) diagnoses in the United States (US) have plateaued since 2013. We assessed whether there is an association between uptake of pre-exposure prophylaxis (PrEP) and decreases in HIV diagnoses. METHODS: We used 2012-2016 data from the US National HIV Surveillance System to estimate viral suppression (VS) and annual percentage change in diagnosis rate (EAPC) in 33 jurisdictions, and data from a national pharmacy database to estimate PrEP uptake. We used Poisson regression with random effects for state and year to estimate the association between PrEP coverage and EAPC: within jurisdictional quintiles grouped by changes in PrEP coverage, regressing EAPC on time; and among all jurisdictions, regressing EAPC on both time and jurisdictional changes in PrEP coverage with and without accounting for changes in VS. RESULTS: From 2012 to 2016, across the 10 states with the greatest increases in PrEP coverage, the EAPC decreased 4.0% (95% confidence interval [CI], -5.2% to -2.9%). On average, across the states and District of Columbia, EAPC for a given year decreased by 1.1% (95% CI, -1.77% to -.49%) for an increase in PrEP coverage of 1 per 100 persons with indications. When controlling for VS, the state-specific EAPC for a given year decreased by 1.3% (95% CI, -2.12% to -.57%) for an increase in PrEP coverage of 1 per 100 persons with indications. CONCLUSIONS: We found statistically significant associations between jurisdictional increases in PrEP coverage and decreases in EAPC independent of changes in VS, which supports bringing PrEP use to scale in the US to accelerate reductions in HIV infections. |
Global burden of respiratory infections associated with seasonal influenza in children under 5 years in 2018: a systematic review and modelling study
Wang X , Li Y , O'Brien KL , Madhi SA , Widdowson MA , Byass P , Omer SB , Abbas Q , Ali A , Amu A , Azziz-Baumgartner E , Bassat Q , Abdullah Brooks W , Chaves SS , Chung A , Cohen C , Echavarria M , Fasce RA , Gentile A , Gordon A , Groome M , Heikkinen T , Hirve S , Jara JH , Katz MA , Khuri-Bulos N , Krishnan A , de Leon O , Lucero MG , McCracken JP , Mira-Iglesias A , Moisi JC , Munywoki PK , Ourohire M , Polack FP , Rahi M , Rasmussen ZA , Rath BA , Saha SK , Simoes EA , Sotomayor V , Thamthitiwat S , Treurnicht FK , Wamukoya M , Yoshida LM , Zar HJ , Campbell H , Nair H . Lancet Glob Health 2020 8 (4) e497-e510 BACKGROUND: Seasonal influenza virus is a common cause of acute lower respiratory infection (ALRI) in young children. In 2008, we estimated that 20 million influenza-virus-associated ALRI and 1 million influenza-virus-associated severe ALRI occurred in children under 5 years globally. Despite this substantial burden, only a few low-income and middle-income countries have adopted routine influenza vaccination policies for children and, where present, these have achieved only low or unknown levels of vaccine uptake. Moreover, the influenza burden might have changed due to the emergence and circulation of influenza A/H1N1pdm09. We aimed to incorporate new data to update estimates of the global number of cases, hospital admissions, and mortality from influenza-virus-associated respiratory infections in children under 5 years in 2018. METHODS: We estimated the regional and global burden of influenza-associated respiratory infections in children under 5 years from a systematic review of 100 studies published between Jan 1, 1995, and Dec 31, 2018, and a further 57 high-quality unpublished studies. We adapted the Newcastle-Ottawa Scale to assess the risk of bias. We estimated incidence and hospitalisation rates of influenza-virus-associated respiratory infections by severity, case ascertainment, region, and age. We estimated in-hospital deaths from influenza virus ALRI by combining hospital admissions and in-hospital case-fatality ratios of influenza virus ALRI. We estimated the upper bound of influenza virus-associated ALRI deaths based on the number of in-hospital deaths, US paediatric influenza-associated death data, and population-based childhood all-cause pneumonia mortality data in six sites in low-income and lower-middle-income countries. FINDINGS: In 2018, among children under 5 years globally, there were an estimated 109.5 million influenza virus episodes (uncertainty range [UR] 63.1-190.6), 10.1 million influenza-virus-associated ALRI cases (6.8-15.1); 870 000 influenza-virus-associated ALRI hospital admissions (543 000-1 415 000), 15 300 in-hospital deaths (5800-43 800), and up to 34 800 (13 200-97 200) overall influenza-virus-associated ALRI deaths. Influenza virus accounted for 7% of ALRI cases, 5% of ALRI hospital admissions, and 4% of ALRI deaths in children under 5 years. About 23% of the hospital admissions and 36% of the in-hospital deaths were in infants under 6 months. About 82% of the in-hospital deaths occurred in low-income and lower-middle-income countries. INTERPRETATION: A large proportion of the influenza-associated burden occurs among young infants and in low-income and lower middle-income countries. Our findings provide new and important evidence for maternal and paediatric influenza immunisation, and should inform future immunisation policy particularly in low-income and middle-income countries. FUNDING: WHO; Bill & Melinda Gates Foundation. |
Estimating the probability of diagnosis within one year of HIV acquisition
Xia Q , Lim S , Wu B , Forgione LA , Crossa A , Balaji AB , Braunstein SL , Daskalakis DC , Tsoi BW , Harriman G , Torian LV , Song R . AIDS 2020 34 (7) 1075-1080 BACKGROUND: Early diagnosis of HIV is important for the prevention of ongoing transmission and development of HIV-related illness. The purpose of this study is to develop an outcome indicator to monitor the progress in early HIV diagnosis. METHODS: Persons diagnosed with HIV in New York City and their first CD4 test results were used to estimate the distribution of HIV diagnosis delay, based on a CD4 count depletion model. The distribution was then used to estimate the probability of diagnosis within 1 year of HIV acquisition, which is the number of cases diagnosed in a given calendar year for which diagnosis occurred within 1 year of acquisition divided by the number of incident cases in that calendar year. RESULTS: In 2012-2016, the estimated annual probability of diagnosis within 1 year of HIV acquisition in New York City was 43.0% [95% confidence interval (CI): 37.9-48.2%), 42.5% (95% CI: 36.8--48.3%), 42.8% (95% CI: 36.3--49.2%), 42.9% (95% CI: 35.4--50.3%), and 42.2% (95% CI: 33.1--51.2%), respectively. CONCLUSION: National and local health jurisdictions should consider using this new outcome indicator, the probability of diagnosis within 1 year of HIV acquisition, to monitor their progress in early HIV diagnosis. |
Dietary characteristics associated with plasma concentrations of per- and polyfluoroalkyl substances among adults with pre-diabetes: Cross-sectional results from the Diabetes Prevention Program Trial
Lin PD , Cardenas A , Hauser R , Gold DR , Kleinman KP , Hivert MF , Fleisch AF , Calafat AM , Sanchez-Guerra M , Osorio-Yanez C , Webster TF , Horton ES , Oken E . Environ Int 2020 137 105217 Diet is assumed to be the main source of exposure to per- and polyfluoroalkyl substances (PFAS) in non-occupationally exposed populations, but studies on the diet-PFAS relationship in the United States are scarce. We extracted multiple dietary variables, including daily intakes of food group, diet scores, and dietary patterns, from self-reported dietary data collected at baseline (1996-1999) from adults with pre-diabetes enrolled in the Diabetes Prevention Program, and used linear regression models to evaluate relationships of each dietary variable with plasma concentrations of six PFAS (perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonic acid (PFHxS), 2-(N-ethyl-perfluorooctane sulfonamido) acetic acid (EtFOSAA), 2-(N-methyl-perfluorooctane sulfonamido) acetic acid (MeFOSAA), perfluorononanoic acid (PFNA) adjusting for covariates. Participants (N=941, 65% female, 58% Caucasian, 68% married, 75% with higher education, 95% nonsmoker) had similar PFAS concentrations compared to the general U.S. population during 1999-2000. Using a single food group approach, fried fish, other fish/shellfish, meat and poultry had positive associations with most PFAS plasma concentrations. The strongest effect estimate detected was between fried fish and PFNA [13.6% (95% CI: 7.7, 19.9) increase in median concentration per SD increase]. Low-carbohydrate and high protein diet score had positive association with plasma PFHxS. Some food groups, mostly vegetables and fruits, and the Dietary Approaches to Stop Hypertension diet score had inverse associations with PFOS and MeFOSAA. A vegetable diet pattern was associated with lower plasma concentrations of MeFOSAA, while high-fat meat and low-fiber and high-fat grains diet patterns were associated with higher plasma concentrations of PFOS, PFHxS, MeFOSAA and PFNA. We summarized four major dietary characteristics associated with variations in PFAS plasma concentrations in this population. Specifically, consuming more meat/fish/shellfish (especially fried fish, and excluding Omega3-rich fish), low-fiber and high-fat bread/cereal/rice/pasta, and coffee/tea was associated with higher plasma concentrations while dietary patterns of vegetables, fruits and Omega-3 rich fish were associated with lower plasma concentrations of some PFAS. |
Per- and polyfluoroalkyl substances and blood pressure in pre-diabetic adults-cross-sectional and longitudinal analyses of the Diabetes Prevention Program Outcomes Study
Lin PD , Cardenas A , Hauser R , Gold DR , Kleinman KP , Hivert MF , Calafat AM , Webster TF , Horton ES , Oken E . Environ Int 2020 137 105573 The relationship of plasma concentration of per- and polyfluoroalkyl substances (PFAS) with blood pressure (BP) is uncertain. This study examined cross-sectional and prospective associations of PFAS with BP and hypertension. We quantified plasma PFAS concentrations from 957 participants enrolled in the lifestyle and placebo arms of the Diabetes Prevention Program (DPP), a randomized controlled trial with approximately 15 years of follow-up. We used multivariable linear and logistic regressions to test cross-sectional associations of six PFAS, including perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonic acid (PFHxS), N-ethyl-perfluorooctane sulfonamido acetic acid (EtFOSAA), N-methyl-perfluorooctane sulfonamido acetic acid (MeFOSAA), and perfluorononanoic acid (PFNA), with BP and hypertension prevalence, respectively, at baseline. We used generalized linear mixed models to estimate longitudinal associations between baseline PFAS and the rate of BP changes, and Cox-Proportional hazard models to estimate risk of developing hypertension relative to baseline PFAS. Models were adjusted for baseline age, sex, race/ethnicity, treatment arm, educational attainment, income, marital status, smoking habit, alcohol drinking, and diet. We tested for effect modification by the treatment arm and sex, and accounted for multiple comparisons using the False-Discovery Rate (FDR). PFAS concentrations and hypertension prevalence within the study population (65.3% female, 57.7% White, 65.3% aged 40-59 years) were comparable to the general U.S. population. Cross-sectionally, we found small but statistically significant associations of baseline plasma concentrations of PFOA with systolic BP (beta per doubling: 1.49 mmHg, 95% CI: 0.29, 2.70); and MeFOSAA with hypertension (RR = 1.09 per doubling, 95% CI: 1.01, 1.19). Estimates were not statistically significant after FDR adjustment. Longitudinally, we observed null associations in the placebo arm, but some inverse associations of baseline PFOS and MeFOSAA with systolic BP in the lifestyle arm, perhaps due to regression toward the mean. Baseline PFAS concentrations also were not prospectively associated with hypertension risk. Overall, there were modest and mostly null associations of plasma PFAS concentrations with BP and hypertension. |
Associations between fine particulate matter, extreme heat events, and congenital heart defects
Stingone JA , Luben TJ , Sheridan SC , Langlois PH , Shaw GM , Reefhuis J , Romitti PA , Feldkamp ML , Nembhard WN , Browne ML , Lin S . Environ Epidemiol 2019 3 (6) e071 Previous research reports associations between air pollution measured during pregnancy and the occurrence of congenital heart defects (CHDs) in offspring. The objective of this research was to assess if exposure to extreme heat events (EHEs) during pregnancy may modify this association. Methods: The study population consisted of 4,033 controls and 2,632 cases with dates of delivery between 1999 and 2007 who participated in the National Birth Defects Prevention Study, a multi-site case-control study in the United States. Daily data from the closest stationary fine particulate matter (PM2.5) monitor within 50 km from the maternal residence were averaged across weeks 3-8 post-conception. EHEs were defined as maximum ambient temperature in the upper 95th percentile for at least 2 consecutive days or the upper 90th percentile for 3 consecutive days. Logistic regression models were adjusted for maternal age, ethnicity, education, and average humidity. Relative excess risks due to interaction (RERI) were calculated. Results: Compared with women with low PM2.5 exposure and no exposure to an EHE, the odds of a ventricular septal defect in offspring associated with high PM2.5 exposure was elevated only among women who experienced an EHE (odds ratio [OR] 2.14 95% confidence interval [CI] 1.19, 3.38 vs. OR 0.97 95% CI 0.49, 1.95; RERI 0.82 95% CI -0.39, 2.17). The majority of observed associations and interactions for other heart defects were null and/or inconclusive due to lack of precision. Conclusions: This study provides limited evidence that EHEs may modify the association between prenatal exposure to PM2.5 and CHD occurrence. |
Outbreak of gastrointestinal anthrax following eating beef of suspicious origin: Isingiro District, Uganda, 2017
Nakanwagi M , Ario AR , Kwagonza L , Aceng FL , Mwesigye J , Bulage L , Buule J , Sendagala JN , Downing R , Zhu BP . PLoS Negl Trop Dis 2020 14 (2) e0008026 INTRODUCTION: Gastrointestinal anthrax is a rare but serious disease. In August 2017, Isingiro District, Uganda reported a cluster of >40 persons with acute-onset gastroenteritis. Symptoms included bloody diarrhoea. We investigated to identify the etiology and exposures, and to inform control measures. METHODS: We defined a suspected case as acute-onset of diarrhoea or vomiting during 15-31 August 2017 in a resident (aged>/=2 years) of Kabingo sub-county, Isingiro District; a confirmed case was a suspected case with a clinical sample positive for Bacillus anthracis by culture or PCR. We conducted descriptive epidemiology to generate hypotheses. In a case-control study, we compared exposures between case-patients and neighbourhood-matched controls. We used conditional logistic regression to compute matched odds ratios (MOR) for associations of illness with exposures. RESULTS: We identified 61 cases (58 suspected and 3 confirmed; no deaths). In the case-control study, 82% of 50 case-patients and 12% of 100 controls ate beef purchased exclusively from butchery X during the week before illness onset (MOR = 46, 95%CI = 4.7-446); 8.0% of case-patients and 3.0% of controls ate beef purchased from butchery X and elsewhere (MOR = 19, 95%CI = 1.0-328), compared with 6.0% of case-patients and 30% of controls who did not eat beef. B. anthracis was identified in two vomitus and one stool sample. Butchery X slaughtered a sick cow and sold the beef during case-patients' incubation period. CONCLUSION: This gastrointestinal anthrax outbreak occurred due to eating beef from butchery X. We recommended health education, safe disposal of the carcasses of livestock or game animals, and anthrax vaccination for livestock. |
Association between use of diagnostic tests and antibiotic prescribing for pharyngitis in the United States
Shapiro DJ , King LM , Fleming-Dutra KE , Hicks LA , Hersh AL . Infect Control Hosp Epidemiol 2020 41 (4) 1-3 Pharyngitis is a common reason for outpatient antibiotic prescribing in the United States.1,2 With few exceptions, antibiotics should be prescribed for pharyngitis only after confirmation of group A Streptococcus (GAS) by laboratory testing.3 Since rapid antigen detection tests (RADTs) have a specificity of greater than 95% but a sensitivity that is often less than 90% compared to throat cultures, national guidelines recommend performing cultures when RADTs are negative in children but not in adults.3,4 Inappropriate antibiotic prescribing for pharyngitis occurs when antibiotics are prescribed without testing or when antibiotics other than narrow-spectrum penicillins are chosen for non-allergic patients.3,5 Since the prevalence of GAS among cases of pharyngitis is estimated to be 20–30% in children and 5–15% in adults, prescription rates higher than these thresholds suggest overuse.1,3 Appropriate laboratory testing for pharyngitis in patients who are prescribed antibiotics is a Healthcare Effectiveness Data and Information Set (HEDIS) performance measure in children, and it will be expanded in 2020 to include adults.5 Our objectives were to describe use of laboratory testing and antibiotic prescribing for GAS in the United States. |
Global impact of rotavirus vaccination on diarrhea hospitalizations and deaths among children <5 years old: 2006-2019
Burnett E , Parashar UD , Tate JE . J Infect Dis 2020 222 (10) 1731-1739 Since 2006, more than 100 countries have introduced rotavirus vaccine into their immunization programs. We reviewed published data on relative reductions of rotavirus hospitalizations, acute gastroenteritis (AGE) hospitalizations, and AGE deaths among children <5 years old. Articles published from 1 January 2006 to 31 December 2019 with at least 12 months of data before and after rotavirus vaccine introduction were included. Relative reductions were abstracted into a standardized form. Descriptive statistics are presented as medians and interquartile ranges (IQR). We reviewed 1827 total records and included 105 articles from 49 countries. Among children <5 years old, there was a median reduction of 59% (IQR: 46, 74) in rotavirus hospitalizations, 36% (IQR: 23, 47) in AGE hospitalizations, and 36% (IQR: 28, 46) AGE mortality. Reductions were larger in countries with low child mortality, among younger age groups, and in countries with higher coverage. The median percentage of specimens that tested positive for rotavirus among children <5 years old hospitalized for diarrhea was 40% (IQR: 28, 45) before rotavirus vaccine introduction and 20% (IQR: 20, 20) 4 years after introduction. Overall, we found sustained impact on rotavirus and AGE hospitalizations and deaths. These results should encourage countries still considering rotavirus vaccine implementation. |
Tetanus, diphtheria, and acellular pertussis and influenza vaccinations among women with a live birth, Internet Panel Survey, 2017-2018
Murthy NC , Black C , Kahn KE , Ding H , Ball S , Fink RV , Devlin R , D'Angelo D , Fiebelkorn AP . Infect Dis (Auckl) 2020 13 1178633720904099 Objectives: Pregnant women are at increased risk of complications from influenza, and infants are at increased risk of pertussis. Maternal influenza and Tdap (tetanus, diphtheria, and acellular pertussis) vaccination can reduce risk of these infections and related complications. Our objective was to estimate vaccination coverage with influenza and Tdap vaccines during pregnancy among women with a recent live birth. Methods: An opt-in Internet panel survey was conducted from March 28 to April 10, 2018 among pregnant and recently pregnant women. Respondents with a live birth from August 1, 2017 through the date in which the participant completed the survey were included in the analysis. Receipt of influenza vaccination since July 1, 2017 and Tdap vaccination during pregnancy were assessed by sociodemographic characteristics, receipt of a health care provider (HCP) recommendation and/or offer of vaccination, and vaccination-related knowledge, attitudes, and beliefs. Results: Less than a third (30.3%) of women with a live birth were unvaccinated during their pregnancy with both Tdap and influenza vaccines. Almost a third (32.8%) of the women reported being vaccinated with both vaccines. The majority (73.0%) of women reported receiving an HCP recommendation for both vaccines, and 54.2% of women were offered both vaccines by an HCP. Reasons for nonvaccination included negative attitudes toward influenza vaccine and lack of awareness about Tdap vaccination during pregnancy. Conclusions: Maternal Tdap and influenza vaccinations can prevent morbidity and mortality among infants and their mothers, yet many pregnant women are unvaccinated with either Tdap or influenza vaccines. Clinic-based education, along with interventions, such as standing orders and provider reminders, are strategies to increase maternal vaccination. |
Pediatricians' experiences with and perceptions of the Vaccines for Children Program
O'Leary ST , Allison MA , Vogt T , Hurley LP , Crane LA , Brtnikova M , McBurney E , Beaty BL , Crawford N , Lindley MC , Stokley SK , Kempe A . Pediatrics 2020 145 (3) BACKGROUND AND OBJECTIVES: The Vaccines for Children Program (VFC) provides vaccines for children who may not otherwise be vaccinated because of financial barriers. Pediatrician participation is crucial to the VFC's ongoing success. Our objectives were to assess, among a national sample of pediatricians, (1) VFC program participation, (2) perceived burden versus benefit of participation, and (3) knowledge and perception of a time-limited increased payment for VFC vaccine administration under the Patient Protection and Affordable Care Act. METHODS: An electronic and mail survey was conducted from June 2017 to September 2017. RESULTS: Response rate was 79% (372 of 471); 86% of pediatricians reported currently participating in the VFC; among those, 85% reported never having considered stopping, 10% considered it but not seriously, and 5% seriously considered it. Among those who had considered no longer participating (n = 47), the most commonly reported reasons included difficulty meeting VFC record-keeping requirements (74%), concern about action by the VFC for noncompliance (61%), and unpredictable VFC vaccine supplies (59%). Participating pediatricians rated, on a scale from -5 (high burden) to +5 (high benefit), their overall perception of the VFC: 63% reported +4 or +5, 23% reported +1 to +3, 5% reported 0, and 9% reported -1 to -5. Of pediatricians, 39% reported awareness of temporary increased payment for VFC vaccine administration. Among those, 10% reported that their practice increased the proportion of Medicaid and/or VFC-eligible patients served on the basis of this change. CONCLUSIONS: For most pediatricians, perceived benefits of VFC participation far outweigh perceived burdens. To ensure the program's ongoing success, it will be important to monitor factors influencing provider participation. |
Risk and protective factors associated with youth firearm access, possession or carrying
Mattson SA , Sigel E , Mercado MC . Am J Crim Justice 2020 45 (5) 844-864 Firearm homicide and suicide are the leading causes of violence-related injury deaths among U.S. youth. However, evaluations of the effectiveness of firearm violence prevention programs and strategies to reducing youth firearm violence are limited. To help inform and evaluate such efforts, this study aimed to identify risk and protective factors associated with youth firearm access, possession or carrying (for reasons other than hunting or target shooting) among a sample of U.S. urban youth in the Mountain West. Findings show the influence that youth violence risk (e.g., having friends engaged in delinquency; violence; drug sales; gang fights; exposure to violence; screening positive for violence risk) can have on youth firearm access, possession or carrying. Implications for prevention and intervention are discussed. |
Adverse childhood experiences, internalizing/externalizing symptoms, and associated prescription opioid misuse: A mediation analysis
Tang S , Ports KA , Zhang K , Lin HC . Prev Med 2020 134 106034 Adverse childhood experiences (ACEs) are associated with mental health and substance use problems, but lesser known is how they interconnect. The objective of this study was to examine how internalizing and externalizing symptoms mediate the association of ACEs with prescription opioid misuse in order to understand how ACEs interconnect with mental health and substance use problems. Adults aged 18 or older from the National Epidemiological Survey on Alcohol and Related Conditions Wave 3 (NESARC-III) conducted in 2012-2013 were included (N=36,309). The prescription opioid misuse outcomes examined include prescription opioid misuse status, early-onset status of prescription opioid misuse, frequency of past-year prescription opioid misuse, and opioid use disorder. A natural effect model and regression analyses were used to conduct the mediation analyses. We found that respondents with higher ACE scores had greater odds of reporting past-year and lifetime prescription opioid misuse and DSM-V-diagnosed opioid use disorder as well as early onset of prescription opioid misuse (AORs range from 1.06 to 1.12). These associations are partially mediated by internalizing and externalizing symptoms. The findings suggest that internalizing and externalizing symptoms may be potential pathways through which ACEs are associated with prescription opioid misuse. Our results underscore the importance of preventing ACEs and reducing risk for internalizing and externalizing symptoms after exposure, which may reduce later prescription opioid misuse. |
Influenza virus NS1- C/EBPβ gene regulatory complex inhibits RIG-I transcription.
Kumari R , Guo Z , Kumar A , Wiens M , Gangappa S , Katz JM , Cox NJ , Lal RB , Sarkar D , Fisher PB , Garcia-Sastre A , Fujita T , Kumar V , Sambhara S , Ranjan P , Lal SK . Antiviral Res 2020 176 104747 Influenza virus non-structural protein 1 (NS1) counteracts host antiviral innate immune responses by inhibiting Retinoic acid inducible gene-I (RIG-I) activation. However, whether NS1 also specifically regulates RIG-I transcription is unknown. Here, we identify a CCAAT/Enhancer Binding Protein beta (C/EBPbeta) binding site in the RIG-I promoter as a repressor element, and show that NS1 promotes C/EBPbeta phosphorylation and its recruitment to the RIG-I promoter as a C/EBPbeta/NS1 complex. C/EBPbeta overexpression and siRNA knockdown in human lung epithelial cells resulted in suppression and activation of RIG-I expression respectively, implying a negative regulatory role of C/EBPbeta. Further, C/EBPbeta phosphorylation, its interaction with NS1 and occupancy at the RIG-I promoter was associated with RIG-I transcriptional inhibition. These findings provide an important insight into the molecular mechanism by which influenza NS1 commandeers RIG-I transcriptional regulation and suppresses host antiviral responses. |
A DNA polymerization-independent role for mitochondrial DNA polymerase IC in African trypanosomes.
Miller JC , Delzell SB , Concepcion-Acevedo J , Boucher MJ , Klingbeil MM . J Cell Sci 2020 133 (9) The mitochondrial DNA of Trypanosoma brucei and related parasites is a catenated network containing thousands of minicircles and tens of maxicircles called kinetoplast DNA (kDNA). Replication of the single nucleoid requires at least three DNA polymerases (POLIB, POLIC, and POLID) each having discrete localization near the kDNA during S phase. POLIB and POLID have roles in minicircle replication while the specific role of POLIC in kDNA maintenance is less clear. Here, we use an RNAi-complementation system to dissect the functions of the distinct POLIC domains: the conserved family A DNA polymerase domain (POLA) and the uncharacterized N-terminal region (UCR). While RNAi complementation with wild-type POLIC restored kDNA content and cell cycle localization, active site point mutations in the POLA domain impaired minicircle replication similarly to POLIB and POLID depletions. Complementation with POLA domain alone abolished POLIC foci formation and partially rescued the RNAi phenotype. Furthermore, we provide evidence of a crucial role for the UCR in cell cycle localization that facilitates proper distribution of progeny networks. This is the first report of a DNA polymerase that impacts mitochondrial nucleoid distribution. |
An animal model of inhaled vitamin E acetate and EVALI-like lung injury
Bhat TA , Kalathil SG , Bogner PN , Blount BC , Goniewicz ML , Thanavala YM . N Engl J Med 2020 382 (12) 1175-1177 To the Editor | | As of February 4, 2020, electronic-cigarette, or vaping, product use–associated lung injury (EVALI) has resulted in the hospitalization of 2758 people across the United States and has been linked to at least 64 deaths (www.cdc.gov/tobacco/basic_information/e-cigarettes/severe-lung-disease.html). Although recent testing by the Centers for Disease Control and Prevention showed the presence of vitamin E acetate in bronchoalveolar-lavage (BAL) fluid samples obtained from patients with EVALI,1,2 additional studies are necessary to determine whether a causal link exists between inhalation of vitamin E acetate and EVALI. |
Neutralization capacity of highly divergent type 2 vaccine-derived polioviruses from immunodeficient patients
McDonald SL , Weldon WC , Wei L , Chen Q , Shaw J , Zhao K , Jorba J , Kew OM , Pallansch MA , Burns CC , Oberste MS . Vaccine 2020 38 (14) 3042-3049 The use of the oral poliovirus vaccine (OPV) in developing countries has reduced the incidence of poliomyelitis by >99% since 1988 and is the primary tool for global polio eradication. Spontaneous reversions of the vaccine virus to a neurovirulent form can impede this effort. In persons with primary B-cell immunodeficiencies, exposure to OPV can result in chronic infection, mutation, and excretion of immunodeficiency-associated vaccine-derived polioviruses, (iVDPVs). These iVDPVs may have the potential for transmission in a susceptible population and cause paralysis. The extent to which sera from OPV recipients are able to neutralize iVDPVs with varying degrees of antigenic site substitutions is investigated here. We tested sera from a population immunized with a combination vaccine schedule (both OPV and inactivated polio vaccine) against a panel of iVDPVs and found that increases in amino acid substitution in the P1 capsid protein resulted in a decrease in the neutralizing capacity of the sera. This study underscores the importance of maintaining high vaccine coverage in areas of OPV use as well as active surveillance of those known to be immunocompromised. |
The utility of human immune system mice for high-containment viral hemorrhagic fever research
Wozniak DM , Lavender KJ , Prescott J , Spengler JR . Vaccines (Basel) 2020 8 (1) Human immune system (HIS) mice are a subset of humanized mice that are generated by xenoengraftment of human immune cells or tissues and/or their progenitors into immunodeficient mice. Viral hemorrhagic fevers (VHFs) cause severe disease in humans, typically with high case fatality rates. HIS mouse studies have been performed to investigate the pathogenesis and immune responses to VHFs that must be handled in high-containment laboratory facilities. Here, we summarize studies on filoviruses, nairoviruses, phenuiviruses, and hantaviruses, and discuss the knowledge gained from using various HIS mouse models. Furthermore, we discuss the complexities of designing and interpreting studies utilizing HIS mice while highlighting additional questions about VHFs that can still be addressed using HIS mouse models. |
Slowing decline in blood collection and transfusion in the United States - 2017
Jones JM , Sapiano MRP , Savinkina AA , Haass KA , Baker ML , Henry RA , Berger JJ , Basavaraju SV . Transfusion 2020 60 Suppl 2 S1-S9 INTRODUCTION: The National Blood Collection and Utilization Survey (NBCUS) has demonstrated declines in blood collection and transfusion in the United States since 2008, including declines of 11.6% in red blood cell (RBC) collections and 13.9% in RBC transfusions during 2013-2015. This study described the 2017 NBCUS results. METHODS: The 2017 NBCUS was distributed to all US blood collection centers, all hospitals performing at least 1000 surgeries annually, and a 40% random sample of hospitals performing 100 to 999 surgeries annually. Weighting and imputation were used to generate national estimates for units of blood and components collected, deferred, distributed, transfused, and outdated. RESULTS: Response rates for the 2017 NBCUS were 88% for blood collection centers and 86% for transfusing hospitals. Compared with 2015, the number of RBC units collected during 2017 (12,211,000; 95% confidence interval [CI], 11,680,000-12,742,000) declined by 3.0%, and transfused RBC units (10,654,000, 95% CI, 10,314,000-10,995,000) declined by 6.1%. Distributed platelet (PLT) units (2,560,000; 95% CI, 2,391,000-2,730,000 units) increased by 5.1%, and transfused PLT units (1,937,000, 95% CI, 1,794,000-2,079,000) declined by 2.3%. Distributed plasma units (3,209,000; 95% CI, 2,879,000-3,539,000) declined by 13.6%, and transfused plasma units (2,374,000; 95% CI, 2,262,000-2,487,000) declined by 12.9%. CONCLUSION: The 2017 NBCUS suggests a continued but slowing decline in demand for RBCs. The decline in blood collection and use will likely continue. Despite decreasing demand and increasing manufacturing costs of blood products, the US blood industry has met the regular and emergent needs of the country. |
Sugar-sweetened beverage consumption and lipid profile: More evidence for interventions
Kuklina EV , Park S . J Am Heart Assoc 2020 9 (5) e015061 In this issue of the Journal of the American Heart Association (JAHA), McKeown et al1 examined the association between sugar‐sweetened beverage (SSB) consumption and changes in lipid profile among participants of the Framingham Offspring (N=3124) and Generation Three cohorts (N=2800). The Framingham Heart Study began recruitment of the Original Cohort in 1948 with a purpose to investigate the cause and prognosis of the cardiovascular system, lung, and other diseases.2 The town of Framingham located 20 miles (32.2 km) west of Boston, Massachusetts, was selected as a study site because of a high response rate to a community‐based tuberculosis screening project.2 The town is also close to medical research hospitals. The early results of the study paved the road for clinical trials of discovering new preventive strategies for reducing the risk of cardiovascular disease. In 1972, children of the Original Cohort, along with their spouses, enrolled in the Offspring Cohort.2 In 2002, adults having at least 1 parent in the Offspring Cohort enrolled in the Third Generation Cohort.2 |
Determinants of international variation in the prevalence of disabling wrist and hand pain
Coggon D , Ntani G , Walker-Bone K , Felli VE , Harari F , Barrero LH , Felknor SA , Rojas M , Cattrell A , Serra C , Borchini R , Solidaki E , Merisalu E , Habib RR , Sadeghian F , Kadir MM , Peiris-John RJ , Matsudaira K , Nyantumbu-Mkhize B , Kelsall HL , Harcombe H . BMC Musculoskelet Disord 2019 20 (1) 436 BACKGROUND: Previous research has indicated that wide international variation in the prevalence of disabling low back pain among working populations is largely driven by factors predisposing to musculoskeletal pain more generally. This paper explores whether the same applies to disabling wrist/hand pain (WHP). METHODS: Using data from the Cultural and Psychosocial Influences on Disability (CUPID) study, we focused on workers from 45 occupational groups (office workers, nurses and other workers) in 18 countries. Among 11,740 participants who completed a baseline questionnaire about musculoskeletal pain and potential risk factors, 9082 (77%) answered a further questionnaire after a mean interval of 14 months, including 1373 (15%) who reported disabling WHP in the month before follow-up. Poisson regression was used to assess associations of this outcome with baseline risk factors, including the number of anatomical sites other than wrist/hand that had been painful in the 12 months before baseline (taken as an index of general propensity to pain). RESULTS: After allowance for other risk factors, the strongest associations were with general pain propensity (prevalence rate ratio for an index >/=6 vs. 0: 3.6, 95% confidence interval 2.9-4.4), and risk rose progressively as the index increased. The population attributable fraction for a pain propensity index > 0 was 49.4%. The prevalence of disabling WHP by occupational group ranged from 0.3 to 36.2%, and correlated strongly with mean pain propensity index (correlation coefficient 0.86). CONCLUSION: Strategies to prevent disability from WHP among working populations should explore ways of reducing general propensity to pain, as well as improving the ergonomics of occupational tasks. |
The burden of respiratory abnormalities among workers at coffee roasting and packaging facilities
Harvey RR , Fechter-Leggett ED , Bailey RL , Edwards NT , Fedan KB , Virji MA , Nett RJ , Cox-Ganser JM , Cummings KJ . Front Public Health 2020 8 5 Introduction: Respiratory hazards in the coffee roasting and packaging industry can include asthmagens such as green coffee bean and other dust and alpha-diketones such as diacetyl and 2,3-pentanedione that can occur naturally from roasting coffee or artificially from addition of flavoring to coffee. We sought to describe the burden of respiratory abnormalities among workers at 17 coffee roasting and packaging facilities. Methods: We completed medical surveys at 17 coffee roasting and packaging facilities that included interviewer-administered questionnaires and pulmonary function testing. We summarized work-related symptoms, diagnoses, and spirometry testing results among all participants. We compared health outcomes between participants who worked near flavoring and who did not. Results: Participants most commonly reported nose and eye symptoms, and wheeze, with a work-related pattern for some. Symptoms and pulmonary function tests were consistent with work-related asthma in some participants. About 5% of workers had abnormal spirometry and most improved after bronchodilator. Health outcomes were similar between employees who worked near flavoring and who did not, except employees who worked near flavoring reported more chronic bronchitis and ever receiving a diagnosis of asthma than those who did not work near flavoring. Conclusion: The symptoms and patterns likely represent overlapping health effects of different respiratory hazards, including green coffee bean and other dust that can contribute to work-related asthma, and diacetyl and 2,3-pentanedione that can contribute to obliterative bronchiolitis. Healthcare providers and occupational health and safety practitioners should be aware that workers at coffee roasting and packaging facilities are potentially at risk for occupational lung diseases. |
Artemether-Lumefantrine Efficacy for the Treatment of Uncomplicated Plasmodium falciparum Infection in Choco, Colombia after 8 Years as First-Line Treatment.
Olivera MJ , Guerra AP , Cortes LJ , Horth RZ , Padilla J , Novoa J , Ade MP , Ljolje D , Lucchi NW , Marquino W , Renteria M , Yurgaky W , Macedo de Oliveira A . Am J Trop Med Hyg 2020 102 (5) 1056-1063 Artemether-lumefantrine (AL) is the first-line treatment for uncomplicated Plasmodium falciparum infection in Colombia. To assess AL efficacy for uncomplicated falciparum malaria in Quibdo, Choco, Colombia, we conducted a 28-day therapeutic efficacy study (TES) following the WHO guidelines. From July 2018 to February 2019, febrile patients aged 5-65 years with microscopy-confirmed P. falciparum mono-infection and asexual parasite density of 250-100,000 parasites/microL were enrolled and treated with a supervised 3-day course of AL. The primary endpoint was adequate clinical and parasitological response (ACPR) on day 28. We attempted to use polymerase chain reaction (PCR) genotyping to differentiate reinfection and recrudescence, and conducted genetic testing for antimalarial resistance-associated genes. Eighty-eight patients consented and were enrolled: four were lost to follow-up or missed treatment doses. Therefore, 84 (95.5%) participants reached a valid endpoint: treatment failure or ACPR. No patient remained microscopy positive for malaria on day 3, evidence of delayed parasite clearance and artemisinin resistance. One patient had recurrent infection (12 parasites/microL) on day 28. Uncorrected ACPR rate was 98.8% (83/84) (95% CI: 93.5-100%). The recurrent infection sample did not amplify during molecular testing, giving a PCR-corrected ACPR of 100% (83/83) (95% CI: 95.7-100%). No P. falciparum kelch 13 polymorphisms associated with artemisinin resistance were identified. Our results support high AL efficacy for falciparum malaria in Choco. Because of the time required to conduct TESs in low-endemic settings, it is important to consider complementary alternatives to monitor antimalarial efficacy and resistance. |
Congenital Chagas disease in the United States: The effect of commercially priced benznidazole on costs and benefits of maternal screening
Perez-Zetune V , Bialek SR , Montgomery SP , Stillwaggon E . Am J Trop Med Hyg 2020 102 (5) 1086-1089 Chagas disease, caused by Trypanosoma cruzi, is transmitted by insect vectors, and through transfusions, transplants, insect feces in food, and mother to child during gestation. An estimated 30% of infected persons will develop lifelong, potentially fatal cardiac or digestive complications. Treatment of infants with benznidazole is highly efficacious in eliminating infection. This work evaluates the costs of maternal screening and infant testing and treatment for Chagas disease in the United States, including the cost of commercially available benznidazole. We compare costs of testing and treatment for mothers and infants with the lifetime societal costs without testing and consequent morbidity and mortality due to lack of treatment or late treatment. We constructed a decision-analytic model, using one tree that shows the combined costs for every possible mother-child pairing. Savings per birth in a targeted screening program are $1,314, and with universal screening, $105 per birth. At current screening costs, universal screening results in $420 million in lifetime savings per birth-year cohort. We found that a congenital Chagas screening program in the United States is cost saving for all rates of congenital transmission greater than 0.001% and all levels of maternal prevalence greater than 0.06% compared with no screening program. |
The influence of removing the ten-minute bout requirement on national physical activity estimates
Ussery EN , Watson KB , Carlson SA . Prev Chronic Dis 2020 17 E19 The updated Physical Activity Guidelines for Americans (2nd edition) removes the requirement that physical activity should occur in bouts lasting 10 minutes or more to count toward the minimum aerobic guideline. Using self-reported data from the 2017 Behavioral Risk Factor Surveillance System (N = 386,960), we examined differences in national physical activity estimates with and without this requirement. Overall, 1.9% of adults reported activities in short bouts (<10 minutes). When excluding short bouts, 29.9% were inactive, 20.7% were insufficiently active, and 49.4% were active. When including short bouts, 29.1% were inactive, 21.4% were insufficiently active, and 49.5% were active. Eliminating the 10-minute-bout requirement had little effect on physical activity estimates. |
Factors associated with local herb use during pregnancy and labor among women in Kigoma region, Tanzania, 2014-2016
Fukunaga R , Morof D , Blanton C , Ruiz A , Maro G , Serbanescu F . BMC Pregnancy Childbirth 2020 20 (1) 122 BACKGROUND: Despite research suggesting an association between certain herb use during pregnancy and delivery and postnatal complications, herbs are still commonly used among pregnant women in sub-Sahara Africa (SSA). This study examines the factors and characteristics of women using local herbs during pregnancy and/or labor, and the associations between local herb use and postnatal complications in Kigoma, Tanzania. METHODS: We analyzed data from the 2016 Kigoma Tanzania Reproductive Health Survey (RHS), a regionally representative, population-based survey of reproductive age women (15-49 years). We included information on each woman's most recent pregnancy resulting in a live birth during January 2014-September 2016. We calculated weighted prevalence estimates and used multivariable logistic regression to calculate adjusted odds ratios (aOR) and 95% confidence intervals (CI) for factors associated with use of local herbs during pregnancy and/or labor, as well as factors associated with postnatal complications. RESULTS: Of 3530 women, 10.9% (CI: 9.0-13.1) used local herbs during their last pregnancy and/or labor resulting in live birth. The most common reasons for taking local herbs included stomach pain (42.9%) and for the health of the child (25.5%). Adjusted odds of local herb use was higher for women reporting a home versus facility-based delivery (aOR: 1.6, CI: 1.1-2.2), having one versus three or more prior live births (aOR: 1.8, CI: 1.4-2.4), and having a household income in the lowest versus the highest wealth tercile (aOR: 1.4, CI: 1.1-1.9). Adjusted odds of postnatal complications were higher among women who used local herbs versus those who did not (aOR: 1.5, CI: 1.2-1.9), had four or more antenatal care visits versus fewer (aOR: 1.4, CI: 1.2-1.2), and were aged 25-34 (aOR: 1.1, CI: 1.0-1.3) and 35-49 (aOR: 1.3, CI: 1.0-1.6) versus < 25 years. CONCLUSIONS: About one in ten women in Kigoma used local herbs during their most recent pregnancy and/or labor and had a high risk of postnatal complications. Health providers may consider screening pregnant women for herb use during antenatal and delivery care as well as provide information about any known risks of complications from herb use. |
Feasibility of administering an electronic version of the National Youth Tobacco Survey in a classroom setting
Hu SS , Gentzke A , Jamal A , Homa D , Neff L . Prev Chronic Dis 2020 17 E20 INTRODUCTION: The National Youth Tobacco Survey (NYTS) has successfully monitored tobacco product use patterns and correlates since 1999 among US students in grades 6 through 12 using a scannable paper-and-pencil format. We conducted a study to determine the feasibility and potential benefits of administering an electronic version of the NYTS in school settings. METHODS: The pilot survey was administered by using 2 versions. Version 1 mimicked the scannable paper-and-pencil format with respect to design, formatting, and structure, but was administered on a tablet computer. Version 2 used an electronic survey design and formatting capabilities, which included programmed logic skips and tobacco product images. Chi-square and t tests were used to assess subgroup differences. Multivariable-adjusted logistic regression models were used to determine if the odds of ever and current tobacco product use differed between the 2 versions. RESULTS: In total, 2,769 students completed version 1 or version 2. Three-quarters of respondents reported a strong preference for using an electronic device to take the NYTS (74.7%). Compared with version 1, version 2 reduced the mean time to complete the survey by 15% (P < .01), reduced the number of questions students needed to answer by 30% (P < .01), and removed 1.9% of inconsistent survey responses. A significant difference was observed for ever e-cigarette use between versions 1 (22.2%) and 2 (29.5%; P < .0001). No significant differences in ever or current use were observed for other tobacco products. CONCLUSION: An electronic mode of administration is feasible and valid for conducting surveillance of tobacco product use among US youths. |
Emergency department visits attributed to adverse events involving benzodiazepines, 2016-2017
Moro RN , Geller AI , Weidle NJ , Lind JN , Lovegrove MC , Rose KO , Goring SK , McAninch JK , Dowell D , Budnitz DS . Am J Prev Med 2020 58 (4) 526-535 INTRODUCTION: Characterization of emergency department visits attributed to adverse events involving benzodiazepines can be used to guide preventive interventions. This study describes U.S. emergency department visits attributed to adverse events involving benzodiazepines by intent, patient characteristics, and clinical manifestations. METHODS: Data from the 2016-2017 National Electronic Injury Surveillance System-Cooperative Adverse Drug Event Surveillance project were analyzed in 2019 to calculate estimated annual numbers and rates of emergency department visits attributed to adverse events involving benzodiazepines, by intent of benzodiazepine use. RESULTS: Based on 6,148 cases, there were an estimated 212,770 (95% CI=167,163, 258,377) emergency department visits annually attributed to adverse events involving benzodiazepines. More than half were visits involving nonmedical use of benzodiazepines (119,008; 55.9%, 95% CI=50.0%, 61.9%), one third were visits involving self-harm with benzodiazepines (64,721; 30.4%, 95% CI=25.6%, 35.2%), and a smaller proportion of visits involved therapeutic use of benzodiazepines (29,041; 13.6%, 95% CI=11.4%, 15.9%). The estimated population rate of visits was highest for nonmedical use of benzodiazepines by patients aged 15-34 years (7.4 visits per 10,000 people). Among visits involving nonmedical use of benzodiazepines, 54.8% (95% CI=49.8%, 59.8%) were made by patients aged 15-34 years, 82.7% (95% CI=80.1%, 85.4%) involved concurrent use of other substances (illicit drugs, alcohol, prescription opioids, and/or other pharmaceuticals), and 24.2% (95% CI=17.7%, 30.6%) involved cardiorespiratory arrest or unresponsiveness. CONCLUSIONS: These findings support recommendations to assess for and address substance use disorder before initiating or continuing benzodiazepines and reinforce the need for validated self-harm risk assessment tools for clinicians. |
The impact of exclusive use of very low nicotine cigarettes on compensatory smoking: An inpatient crossover clinical trial
Smith TT , Koopmeiners JS , White CM , Denlinger-Apte RL , Pacek LR , De Jesus VR , Wang L , Watson C , Blount BC , Hatsukami DK , Benowitz NL , Donny EC , Carpenter MJ . Cancer Epidemiol Biomarkers Prev 2020 29 (4) 880-886 BACKGROUND: The FDA is considering a mandated reduction in the nicotine content of cigarettes. Clinical trials have been limited by non-study cigarette use (noncompliance), which could mask compensation. The goal of this study was to assess whether compensation occurs when smokers provided with very low nicotine cigarettes cannot access normal nicotine cigarettes. METHODS: In a within-subjects, crossover design, current smokers (n = 16) were confined to a hotel for two 4-night hotel stays during which they were only able to access the research cigarettes provided. The hotel stays offered normal nicotine cigarettes or very low nicotine content (VLNC) cigarettes, in an unblinded design, available for "purchase" via a study bank. RESULTS: In the context of complete compliance with the study cigarettes (n = 16), there was not a significant increase during the VLNC condition for cigarettes smoked per day, expired carbon monoxide, or N-acetyl-S-(cyanoethyl)-l-cysteine (cyanoethyl-MA, metabolite of acrylonitrile). There was a significant nicotine x time interaction on urine N-acetyl-S-(3-hydroxypropyl)-l-cysteine (hydroxypropyl-MA, metabolite of acrolein), driven by an increase in the VLNC condition during the first 24 hours. By the end of the VLNC condition, there was no evidence of compensation across any measure of smoking or smoke exposure. CONCLUSIONS: Among current smokers who exclusively used VLNC cigarettes for 4 days, there was no significant compensatory smoking behavior. IMPACT: These data, combined with the larger body of work, suggest that a mandated reduction in nicotine content is unlikely to result in an increase in smoking behavior to obtain more nicotine. |
Mouth-level nicotine intake estimates from discarded filter butts to examine compensatory smoking in low nicotine cigarettes
Smith TT , Koopmeiners JS , Hatsukami DK , Tessier KM , Benowitz NL , Murphy SE , Strasser AA , Tidey JW , Blount BC , Valentin L , Bravo Cardenas R , Watson C , Pirkle JL , Donny EC . Cancer Epidemiol Biomarkers Prev 2020 29 (3) 643-649 BACKGROUND: A mandated reduction in the nicotine content of cigarettes could reduce smoking rate and prevalence. However, one concern is that smokers may compensate by increasing the intensity with which they smoke each cigarette to obtain more nicotine. This study assessed whether smokers engage in compensatory smoking by estimating the mouth-level nicotine intake of low nicotine cigarettes smoked during a clinical trial. METHODS: Smokers were randomly assigned to receive cigarettes with one of five nicotine contents for 6 weeks. An additional group received a cigarette with the lowest nicotine content, but an increased tar yield. The obtained mouth-level nicotine intake from discarded cigarette butts for a subset of participants (51-70/group) was estimated using solanesol as described previously. A compensation index was calculated for each group to estimate the proportion of nicotine per cigarette recovered through changes in smoking intensity. RESULTS: There was no significant increase in smoking intensity for any of the reduced nicotine cigarettes as measured by the compensation index (an estimated 0.4% of the nicotine lost was recovered in the lowest nicotine group; 95% confidence interval, -0.1 to 1.2). There was a significant decrease in smoking intensity for very low nicotine content cigarettes with increased tar yield. CONCLUSIONS: Reductions in nicotine content did not result in compensatory changes in how intensively participants smoked research cigarettes. IMPACT: Combined with data from clinical trials showing a reduction in cigarettes smoked per day, these data suggest that a reduction in nicotine content is unlikely to result in increased smoke exposure. |
Comparison of knowledge, attitude, and practices of animal and human brucellosis between nomadic pastoralists and non-pastoralists in Kenya
Njenga MK , Ogolla E , Thumbi SM , Ngere I , Omulo S , Muturi M , Marwanga D , Bitek A , Bett B , Widdowson MA , Munyua P , Osoro EM . BMC Public Health 2020 20 (1) 269 BACKGROUND: The seroprevalence of brucellosis among nomadic pastoralists and their livestock in arid lands is reported to be over10-fold higher than non-pastoralists farmers and their livestock in Kenya. Here, we compared the seroprevalence of nomadic pastoralists and mixed farming with their knowledge of the disease and high-risk practices associated with brucellosis infection. METHODS: Across-sectional study was conducted in two counties - Kiambu County where farmers primarily practice smallholder livestock production and crop farming, and Marsabit County where farmers practice nomadic pastoral livestock production. Stratified random sampling was applied, in which sublocations were initially selected based on predominant livestock production system, before selecting households using randomly generated geographical coordinates. In each household, up to three persons aged 5 years and above were randomly selected, consented, and tested for Brucella spp IgG antibodies. A structured questionnaire was administered to the household head and selected individuals on disease knowledge and risky practices among the pastoralists and mixed farmers compared. Multivariable mixed effects logistic regression model was used to assess independent practices associated with human Brucella spp. IgG seropositivity. RESULTS: While the majority (74%) of pastoralist households had little to no formal education when compared to mixed (8%), over 70% of all households (pastoralists and mixed farmers) had heard of brucellosis and mentioned its clinical presentation in humans. However, fewer than 30% of all participants (pastoralists and mixed farmers) knew how brucellosis is transmitted between animals and humans or how its transmission can be prevented. Despite their comparable knowledge, significantly more seropositive pastoralists compared to mixed farmers engaged in risky practices including consuming unboiled milk (79.5% vs 1.7%, p < 0.001) and raw blood (28.3% vs 0.4%, p < 0.001), assisting in animal birth (43.0% vs 9.3%, p < 0.001), and handling raw hides (30.6% vs 5.5%, p < 0.001). , CONCLUSION: Nomadic pastoralists are more likely to engage in risky practices that promote Brucella Infection, probably because of their occupation and culture, despite having significant knowledge of the disease. |
Towards rabies elimination in the Asia-Pacific region: From theory to practice
Rupprecht CE , Abela-Ridder B , Abila R , Amparo AC , Banyard A , Blanton J , Chanachai K , Dallmeier K , de Balogh K , Del Rio Vilas V , Ertl H , Freuling C , Hill R , Houillon G , Jakava-Viljanen M , Kasemsuwan S , Lechenet J , Nel L , Panichabhongse P , Rahman SA , Tantawichien T , Vandeputte J , Viriyabancha W , Vos A , Wallace R , Yale G , Yurachai O , Mueller T . Biologicals 2020 64 83-95 Rabies is a major neglected zoonotic disease and causes a substantial burden in the Asian region. Currently, Pacific Oceania is free of rabies but enzootic areas throughout southeast Asia represent a major risk of disease introduction to this region. On September 25-26, 2019, researchers, government officials and related stakeholders met at an IABS conference in Bangkok, Thailand to engage on the topic of human rabies mediated by dogs. The objective of the meeting was focused upon snowballing efforts towards achieving substantial progress in rabies prevention, control and elimination within Asia by 2030, and thereby to safeguard the Pacific region. Individual sessions focused upon domestic animal, wildlife and human vaccination; the production and evaluation of quality, safety and efficacy of existing rabies biologics; and the future development of new products. Participants reviewed the progress to date in eliminating canine rabies by mass vaccination, described supportive methods to parenteral administration by oral vaccine application, considered updated global and local approaches at human prophylaxis and discussed the considerable challenges ahead. Such opportunities provide continuous engagement on disease management among professionals at a trans-disciplinary level and promote new applied research collaborations in a modern One Health context. |
An epidemiological study of suspected rabies exposures and adherence to rabies post-exposure prophylaxis in Eastern Thailand, 2015
Yurachai O , Hinjoy S , Wallace RM . PLoS Negl Trop Dis 2020 14 (2) e0007248 BACKGROUND: Human rabies is a notifiable condition in Thailand, and 46 confirmed and probable cases were reported from 2010-2015; eleven were reported from Eastern Thailand. Although rabies is vaccine preventable, more than 90% of persons who died of rabies in Thailand either did not receive or inappropriately discontinued post-exposure prophylaxis (PEP). In 2012 Thailand launched a national animal rabies elimination program with the goal of elimination by 2020. One of the policies of this national program is to improve detection of animal rabies exposures, access to PEP, and adherence to vaccine schedules. To achieve this goal, several hospital-based electronic PEP surveillance systems have been instituted throughout Thailand. METHOD: Data from a voluntary, electronic hospital-based, rabies exposure and PEP surveillance system was analyzed from eight provinces in Eastern Thailand for the time period January 1 -December 31, 2015. The surveillance system collects data from all persons who present to an R36-integrated healthcare facility with a suspected rabies exposure, including characteristics of the biting animals, categorization of the rabies exposure, and adherence to PEP recommendations. The crude rate of healthcare seeking for a suspected rabies exposure was assessed by province, and a multivariable linear regression model was developed to determine the potential extent of undetected rabies exposures due to bite treatment at healthcare facilities that do not utilize the R36 system. Suspected rabies exposures were described by patient demographics, location of wound, and disposition of the offending animal. A comparison of adherence to intramuscular and intradermal vaccination regimens was performed and odds ratios were calculated for factors related to unadvised PEP discontinuation. RESULT: 6,204 suspected rabies exposures were reported from eight Eastern Thailand provinces, yielding a crude exposure rate of 106 reported rabies exposures per 100,000 population. When adjusted for under-detection due to non-participating hospitals and province-level demographic differences, the estimated suspected rabies exposure rate was 204/100,000. Dogs were the main source of exposure (77.8%) and children age <15 years and elderly age >60 years had the highest overall reported exposure rate (189.7 and 189.2/100,000). Adherence to either the intramuscular 5-dose or the intradermal 4-dose PEP regimen was low (15.8% and 46.5%, respectively); rabies immunoglobulin was received by only 15% of persons for whom it was indicated. Persons with rabies exposures were more likely to discontinue the vaccination series against medical advice if they were male, aged 16-45, if they received immunoglobulin, or if received the intramuscular regimen. CONCLUSION: When adjusting for number of reporting hospitals, province population density, number of hospitals per population and average family income, the expected report rate increased 1.9-fold, indicating that there is likely a high level of under-detection of persons seeking medical care for suspected rabies exposures. Expanded implementation of electronic surveillance systems will likely improve reporting and the epidemiologic knowledge of rabies exposures. Analysis of data collected from this system revealed very low rates of adherence to rabies vaccination recommendations. PEP adherence was better by the intradermal route, which provides more support for its use in situations where it is economically feasible. |
Content Index (Achived Edition)
- Chronic Diseases and Conditions
- Communicable Diseases
- Environmental Health
- Food Safety
- Healthcare Associated Infections
- Immunity and Immunization
- Injury and Violence
- Laboratory Sciences
- Medicine
- Nutritional Sciences
- Occupational Safety and Health
- Parasitic Diseases
- Physical Activity
- Reproductive Health
- Substance Use and Abuse
- Zoonotic and Vectorborne Diseases
About
CDC Science Clips is an online, continuously updated, searchable database of scientific literature published by CDC authors. Each article features an Altmetric Attention Score to track social and mainstream media mentions. If you are aware of a CDC-authored publication that does not appear in this database, please let us know.
- Page last reviewed:Feb 1, 2024
- Page last updated:Apr 22, 2024
- Content source:
- Powered by CDC PHGKB Infrastructure