Last data update: May 06, 2024. (Total: 46732 publications since 2009)
Records 1-30 (of 533 Records) |
Query Trace: Garcia A[original query] |
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Chemical control of medically important arthropods in Panama: A systematic literature review of historical efforts
Tuñon A , García J , Carrera LC , Chaves LF , Lenhart AE , Loaiza JR . Acta Trop 2024 107217 Vector-borne diseases are a major source of morbidity in Panama. Herein, we describe historical usage patterns of synthetic insecticides to control arthropod disease vectors in this country. We examine the influence of interventions by vector control programs on the emergence of insecticide resistance. Chemical control has traditionally focused on two mosquito species: Anopheles albimanus, a major regional malaria vector, and Aedes aegypti, a historical vector of yellow fever, and current vector of dengue, chikungunya, and Zika. Countrywide populations of An. albimanus depict hyperirritability to organochlorine insecticides administered by indoor residual spraying, although they appear susceptible to these insecticides in bioassays settings, as well as to organophosphate and carbamate insecticides in field tests. Populations of Ae. aegypti show resistance to pyrethroids, particularly in areas near Panama City, but the spread of resistance remains unknown in Ae. aegypti and Aedes albopictus. A One Health approach is needed in Panama to pinpoint the insecticide resistance mechanisms including the frequency of knockdown mutations and behavioral plasticity in populations of Anopheles and Aedes mosquitoes. This information is necessary to guide the sustainable implementation of chemical control strategies and the use of modern vector control technologies such as genetically modified mosquitoes, and endosymbiont Wolbachia-based biological control. |
Prevalence, patterns, and predictors of SARS-CoV-2 RNA and culturable virus in tears of case-ascertained household cohort
So M , Goldberg SA , Lu S , Garcia-Knight M , Davidson MC , Tassetto M , Murray VW , Anglin K , Pineda-Ramirez J , Chen JY , Rugart PR , Richardson ET , Hagen MB , Midgley CM , Andino R , Seitzman GD , Gonzales J , Peluso MJ , Martin JN , Kelly JD . Am J Ophthalmol 2024 PURPOSE: To investigate the prevalence, patterns, and predictors of SARS-CoV-2 RNA and culturable virus in tears of case-ascertained household cohort. DESIGN: Prospective, longitudinal case-ascertained household cohort identified through convenience sampling. METHODS: This analysis was restricted to individuals who were non-hospitalized, symptomatic, and tested positive for SARS-CoV-2 by nasal RT-PCR. Tears and anterior nasal biospecimens were serially collected throughout the acute period. Tears specimens were collected by the study staff using Schirmer test strips, and nasal specimens were self-collected. For both, SARS-CoV-2 RNA was quantified using qRT-PCR and culturable virus was detected using presence of cytopathic effect (CPE) in tissue culture; positive CPE was confirmed by a qRT-PCR step. A series of cross-sectional unadjusted analyses were performed investigating the relationship between different sociodemographic determinants and biological factors associated with tears RNA positivity. RESULTS: Among the 83 SARS-CoV-2 infected participants, ten (12%) had at least one RNA positive tears specimen. Amongst these ten, five (50%) had concurrent presence of culturable virus, at a median of 7 days post symptom onset (IQR: 4-7 days) (absolute range: 4-8 days). CONCLUSIONS: In this longitudinal cohort, we found evidence of culturable virus in the tears of a small proportion of non-hospitalized SARS-CoV-2 infected individuals. Current public health infection precautions do not account for transmission via tears, so these findings may improve our understanding of potential sources of SARS-CoV-2 transmission and contribute to developing future guidelines. |
Preventable premature deaths from the five leading causes of death in nonmetropolitan and metropolitan counties, United States, 2010-2022
García MC , Rossen LM , Matthews K , Guy G , Trivers KF , Thomas CC , Schieb L , Iademarco MF . MMWR Surveill Summ 2024 73 (2) 1-11 PROBLEM/CONDITION: A 2019 report quantified the higher percentage of potentially excess (preventable) deaths in U.S. nonmetropolitan areas compared with metropolitan areas during 2010-2017. In that report, CDC compared national, regional, and state estimates of preventable premature deaths from the five leading causes of death in nonmetropolitan and metropolitan counties during 2010-2017. This report provides estimates of preventable premature deaths for additional years (2010-2022). PERIOD COVERED: 2010-2022. DESCRIPTION OF SYSTEM: Mortality data for U.S. residents from the National Vital Statistics System were used to calculate preventable premature deaths from the five leading causes of death among persons aged <80 years. CDC's National Center for Health Statistics urban-rural classification scheme for counties was used to categorize the deaths according to the urban-rural county classification level of the decedent's county of residence (1: large central metropolitan [most urban], 2: large fringe metropolitan, 3: medium metropolitan, 4: small metropolitan, 5: micropolitan, and 6: noncore [most rural]). Preventable premature deaths were defined as deaths among persons aged <80 years that exceeded the number expected if the death rates for each cause in all states were equivalent to those in the benchmark states (i.e., the three states with the lowest rates). Preventable premature deaths were calculated separately for the six urban-rural county categories nationally, the 10 U.S. Department of Health and Human Services public health regions, and the 50 states and the District of Columbia. RESULTS: During 2010-2022, the percentage of preventable premature deaths among persons aged <80 years in the United States increased for unintentional injury (e.g., unintentional poisoning including drug overdose, unintentional motor vehicle traffic crash, unintentional drowning, and unintentional fall) and stroke, decreased for cancer and chronic lower respiratory disease (CLRD), and remained stable for heart disease. The percentages of preventable premature deaths from the five leading causes of death were higher in rural counties in all years during 2010-2022. When assessed by the six urban-rural county classifications, percentages of preventable premature deaths in the most rural counties (noncore) were consistently higher than in the most urban counties (large central metropolitan and fringe metropolitan) for the five leading causes of death during the study period.During 2010-2022, preventable premature deaths from heart disease increased most in noncore (+9.5%) and micropolitan counties (+9.1%) and decreased most in large central metropolitan counties (-10.2%). Preventable premature deaths from cancer decreased in all county categories, with the largest decreases in large central metropolitan and large fringe metropolitan counties (-100.0%; benchmark achieved in both county categories in 2019). In all county categories, preventable premature deaths from unintentional injury increased, with the largest increases occurring in large central metropolitan (+147.5%) and large fringe metropolitan (+97.5%) counties. Preventable premature deaths from CLRD decreased most in large central metropolitan counties where the benchmark was achieved in 2019 and increased slightly in noncore counties (+0.8%). In all county categories, preventable premature deaths from stroke decreased from 2010 to 2013, remained constant from 2013 to 2019, and then increased in 2020 at the start of the COVID-19 pandemic. Percentages of preventable premature deaths varied across states by urban-rural county classification during 2010-2022. INTERPRETATION: During 2010-2022, nonmetropolitan counties had higher percentages of preventable premature deaths from the five leading causes of death than did metropolitan counties nationwide, across public health regions, and in most states. The gap between the most rural and most urban counties for preventable premature deaths increased during 2010-2022 for four causes of death (cancer, heart disease, CLRD, and stroke) and decreased for unintentional injury. Urban and suburban counties (large central metropolitan, large fringe metropolitan, medium metropolitan, and small metropolitan) experienced increases in preventable premature deaths from unintentional injury during 2010-2022, leading to a narrower gap between the already high (approximately 69% in 2022) percentage of preventable premature deaths in noncore and micropolitan counties. Sharp increases in preventable premature deaths from unintentional injury, heart disease, and stroke were observed in 2020, whereas preventable premature deaths from CLRD and cancer continued to decline. CLRD deaths decreased during 2017-2020 but increased in 2022. An increase in the percentage of preventable premature deaths for multiple leading causes of death was observed in 2020 and was likely associated with COVID-19-related conditions that contributed to increased mortality from heart disease and stroke. PUBLIC HEALTH ACTION: Routine tracking of preventable premature deaths based on urban-rural county classification might enable public health departments to identify and monitor geographic disparities in health outcomes. These disparities might be related to different levels of access to health care, social determinants of health, and other risk factors. Identifying areas with a high prevalence of potentially preventable mortality might be informative for interventions. |
Travel surveillance uncovers dengue virus dynamics and introductions in the Caribbean
Taylor-Salmon E , Hill V , Paul LM , Koch RT , Breban MI , Chaguza C , Sodeinde A , Warren JL , Bunch S , Cano N , Cone M , Eysoldt S , Garcia A , Gilles N , Hagy A , Heberlein L , Jaber R , Kassens E , Colarusso P , Davis A , Baudin S , Rico E , Mejía-Echeverri Á , Scott B , Stanek D , Zimler R , Muñoz-Jordán JL , Santiago GA , Adams LE , Paz-Bailey G , Spillane M , Katebi V , Paulino-Ramírez R , Mueses S , Peguero A , Sánchez N , Norman FF , Galán JC , Huits R , Hamer DH , Vogels CBF , Morrison A , Michael SF , Grubaugh ND . Nat Commun 2024 15 (1) 3508 Dengue is the most prevalent mosquito-borne viral disease in humans, and cases are continuing to rise globally. In particular, islands in the Caribbean have experienced more frequent outbreaks, and all four dengue virus (DENV) serotypes have been reported in the region, leading to hyperendemicity and increased rates of severe disease. However, there is significant variability regarding virus surveillance and reporting between islands, making it difficult to obtain an accurate understanding of the epidemiological patterns in the Caribbean. To investigate this, we used travel surveillance and genomic epidemiology to reconstruct outbreak dynamics, DENV serotype turnover, and patterns of spread within the region from 2009-2022. We uncovered two recent DENV-3 introductions from Asia, one of which resulted in a large outbreak in Cuba, which was previously under-reported. We also show that while outbreaks can be synchronized between islands, they are often caused by different serotypes. Our study highlights the importance of surveillance of infected travelers to provide a snapshot of local introductions and transmission in areas with limited local surveillance and suggests that the recent DENV-3 introductions may pose a major public health threat in the region. |
Weekly oral tenofovir alafenamide protects macaques from vaginal and rectal Simian HIV infection
Massud I , Nishiura K , Ruone S , Holder A , Dinh C , Lipscomb J , Mitchell J , Khalil GM , Heneine W , Garcia-Lerma JG , Dobard CW . Pharmaceutics 2024 16 (3) Pre-exposure prophylaxis (PrEP) with a weekly oral regimen of antiretroviral drugs could be a suitable preventative option for individuals who struggle with daily PrEP or prefer not to use long-acting injectables. We assessed in macaques the efficacy of weekly oral tenofovir alafenamide (TAF) at doses of 13.7 or 27.4 mg/kg. Macaques received weekly oral TAF for six weeks and were exposed twice-weekly to SHIV vaginally or rectally on day 3 and 6 after each dose. Median TFV-DP levels in PBMCs following the 13.7 mg/kg dose were 3110 and 1137 fmols/10(6) cells on day 3 and 6, respectively. With the 27.4 mg/kg dose, TFV-DP levels were increased (~2-fold) on day 3 and 6 (6095 and 3290 fmols/10(6) cells, respectively). Both TAF doses (13.7 and 27.4 mg/kg) conferred high efficacy (94.1% and 93.9%, respectively) against vaginal SHIV infection. Efficacy of the 27.4 mg/kg dose against rectal SHIV infection was 80.7%. We estimate that macaque doses of 13.7 and 27.4 mg/kg are equivalent to approximately 230 and 450 mg of TAF in humans, respectively. Our findings demonstrate the effectiveness of a weekly oral PrEP regimen and suggest that a clinically achievable oral TAF dose could be a promising option for non-daily PrEP. |
Novel Oliveros-like Clade C mammarenaviruses from rodents in Argentina, 1990-2020
Shedroff E , Martin ML , Whitmer SLM , Brignone J , Garcia JB , Sen C , Nazar Y , Fabbri C , Morales-Betoulle M , Mendez J , Montgomery J , Morales MA , Klena JD . Viruses 2024 16 (3) Following an Argentine Hemorrhagic Fever (AHF) outbreak in the early 1990s, a rodent survey for Junín virus, a New World Clade B arenavirus, in endemic areas of Argentina was conducted. Since 1990, INEVH has been developing eco-epidemiological surveillance of rodents, inside and outside the Argentine Hemorrhagic Fever endemic area. Samples from rodents captured between 1993 and 2019 that were positive for Arenavirus infection underwent Sanger and unbiased, Illumina-based high-throughput sequencing, which yielded 5 complete and 88 partial Mammarenaviruses genomes. Previously, 11 genomes representing four species of New World arenavirus Clade C existed in public records. This work has generated 13 novel genomes, expanding the New World arenavirus Clade C to 24 total genomes. Additionally, two genomes exhibit sufficient genetic diversity to be considered a new species, as per ICTV guidelines (proposed name Mammarenavirus vellosense). The 13 novel genomes exhibited reassortment between the small and large segments in New World Mammarenaviruses. This work demonstrates that Clade C Mammarenavirus infections circulate broadly among Necromys species in the Argentine Hemorrhagic Fever endemic area; however, the risk for Clade C Mammarenavirus human infection is currently unknown. |
Reply to Rasmussen and Ringwald, "Continued Low Efficacy of Artemether-Lumefantrine in Angola?"
Dimbu PR , Horth R , Cândido ALM , Ferreira CM , Caquece F , Garcia LEA , André K , Pembele G , Jandondo D , Bondo BJ , Nieto Andrade B , Labuda S , Ponce de León G , Kelley J , Patel D , Svigel SS , Talundzic E , Lucchi N , Morais JFM , Fortes F , Martins JF , PluciĹski MM . Antimicrob Agents Chemother 12/28/2021 65 (6) We thank Rasmussen and Ringwald for further highlighting the importance of routine monitoring of antimalarial drug efficacy in sub-Saharan Africa, including Angola (1). Longitudinal monitoring is critical to identify potential new, persistent, and/or expanding foci of parasite resistance to available drugs. In 3 of the last 4 rounds, artemether-lumefantrine (AL) was estimated to have an efficacy of <90% at one of the three sentinel sites in Angola. To our knowledge, in sub-Saharan Africa, only Angola and Burkina Faso (2) have shown AL efficacy of <90% across multiple therapeutic efficacy study (TES) rounds. Thus, we chose a title to highlight this persistent concern. | | We concur that the significance of the high rates of day 2 slide positivity in Lunda Sul Province is not fully known, and as pointed out, there may be various explanations for this finding. Measuring drug levels is resource intensive and not feasible every year, but this could help rule out underdosing in future studies. However, we believe our study procedures, as described in this and previous studies, are robust and thus make systematic underdosing unlikely. We have always strictly adhered to WHO guidelines, including hemoglobin criteria and analysis of day 1 severe cases, to inform our classifications. |
Human exposures to Brucella canis from a pregnant dog during an international flight: Public health risks, diagnostic challenges and future considerations
Williams C , Swisher S , Miller N , Pinn-Woodcock T , Austin C , Hsiao SH , Arenas-Gamboa AM , Tiller R , Thacker T , Taetzsch S , Franklin-Guild R , Cutter L , Quance C , Hung CC , Maddox CW , Ernst M , Guarino C , Lanka S , Garcia-Gonzalez DG , Slager S , Sunavala Z , Brown C , Negron M , Pieracci EG . Zoonoses Public Health 2024 AIMS: This report documents the exposure of passengers and crew of a commercial international flight to the zoonotic pathogen Brucella canis after an infected dog aborted in the passenger cabin of the aircraft. This case demonstrates the challenges associated with brucellosis screening and the risks that airline personnel, airport employees and travellers face when animals with unrecognized zoonotic infections are transported. METHODS/RESULTS: The public health investigation of this case was conducted by the Centers for Disease Control, the Illinois Department of Health and the Illinois Department of Agriculture, in collaboration with a local veterinary clinic and several academic and federal diagnostic laboratories. It included an extensive diagnostic evaluation of the dam and aborted foetuses to confirm a diagnosis of canine brucellosis. Passengers, airline personnel and staff from the veterinary clinic where the dogs were treated underwent risk assessments, and clinic staff also received detailed guidance regarding infection prevention practices. CONCLUSIONS: Animal shelters and breeding programs are recommended to screen dogs routinely for brucellosis, but it is not unusual for domestic or imported animals to have unknown health histories, including the dog's brucellosis status, at the time of purchase, adoption, or re-homing. Testing recommendations and requirements vary by state, making it challenging for state public health and animal health agencies to monitor and respond appropriately. This case highlights the importance of Brucella spp. screening in sexually intact dogs prior to breeding, purchase, or domestic or international transportation of the dogs. The transportation of pregnant dogs may present a previously unrecognized public health threat in addition to contributing to unnecessary stress and health risks for pregnant animals. |
Recommendations for use of p16/Ki67 dual stain for management of individuals testing positive for human papillomavirus
Clarke MA , Wentzensen N , Perkins RB , Garcia F , Arrindell D , Chelmow D , Cheung LC , Darragh TM , Egemen D , Guido R , Huh W , Locke A , Lorey TS , Nayar R , Risley C , Saslow D , Smith RA , Unger ER , Massad LS . J Low Genit Tract Dis 2024 OBJECTIVES: The Enduring Consensus Cervical Cancer Screening and Management Guidelines Committee developed recommendations for dual stain (DS) testing with CINtec PLUS Cytology for use of DS to triage high-risk human papillomavirus (HPV)-positive results. METHODS: Risks of cervical intraepithelial neoplasia grade 3 or worse were calculated according to DS results among individuals testing HPV-positive using data from the Kaiser Permanente Northern California cohort and the STudying Risk to Improve DisparitiES study in Mississippi. Management recommendations were based on clinical action thresholds developed for the 2019 American Society for Colposcopy and Cervical Pathology Risk-Based Management Consensus Guidelines. Resource usage metrics were calculated to support decision-making. Risk estimates in relation to clinical action thresholds were reviewed and used as the basis for draft recommendations. After an open comment period, recommendations were finalized and ratified through a vote by the Consensus Stakeholder Group. RESULTS: For triage of positive HPV results from screening with primary HPV testing (with or without genotyping) or with cytology cotesting, colposcopy is recommended for individuals testing DS-positive. One-year follow-up with HPV-based testing is recommended for individuals testing DS-negative, except for HPV16- and HPV18-positive results, or high-grade cytology in cotesting, where immediate colposcopy referral is recommended. Risk estimates were similar between the Kaiser Permanente Northern California and STudying Risk to Improve DisparitiES populations. In general, resource usage metrics suggest that compared with cytology, DS requires fewer colposcopies and detects cervical intraepithelial neoplasia grade 3 or worse earlier. CONCLUSIONS: Dual stain testing with CINtec PLUS Cytology is acceptable for triage of HPV-positive test results. Risk estimates are portable across different populations. |
Enduring consensus guidelines for cervical cancer screening and management: Introduction to the scope and process
Wentzensen N , Garcia F , Clarke MA , Massad LS , Cheung LC , Egemen D , Guido R , Huh W , Saslow D , Smith RA , Unger ER , Perkins RB . J Low Genit Tract Dis 2024 OBJECTIVES: The Enduring Consensus Cervical Cancer Screening and Management Guidelines (Enduring Guidelines) effort is a standing committee to continuously evaluate new technologies and approaches to cervical cancer screening, management, and surveillance. METHODS AND RESULTS: The Enduring Guidelines process will selectively incorporate new technologies and approaches with adequate supportive data to more effectively improve cancer prevention for high-risk individuals and decrease unnecessary procedures in low-risk individuals. This manuscript describes the structure, process, and methods of the Enduring Guidelines effort. Using systematic literature reviews and primary data sources, risk of precancer will be estimated and recommendations will be made based on risk estimates in the context of established risk-based clinical action thresholds. The Enduring Guidelines process will consider health equity and health disparities by assuring inclusion of diverse populations in the evidence review and risk assessment and by developing recommendations that provide a choice of well-validated strategies that can be adapted to different settings. CONCLUSIONS: The Enduring Guidelines process will allow updating existing cervical cancer screening and management guidelines rapidly when new technologies are approved or new scientific evidence becomes available. |
Novel influenza A viruses in pigs with zoonotic potential, Chile
Tapia R , Brito B , Saavedra M , Mena J , García-Salum T , Rathnasinghe R , Barriga G , Tapia K , García V , Bucarey S , Jang Y , Wentworth D , Torremorell M , Neira V , Medina RA . Microbiol Spectr 2024 e0218123 Novel H1N2 and H3N2 swine influenza A viruses (IAVs) have recently been identified in Chile. The objective of this study was to evaluate their zoonotic potential. We perform phylogenetic analyses to determine the genetic origin and evolution of these viruses, and a serological analysis to determine the level of cross-protective antibodies in the human population. Eight genotypes were identified, all with pandemic H1N1 2009-like internal genes. H1N1 and H1N2 were the subtypes more commonly detected. Swine H1N2 and H3N2 IAVs had hemagglutinin and neuraminidase lineages genetically divergent from IAVs reported worldwide, including human vaccine strains. These genes originated from human seasonal viruses were introduced into the swine population since the mid-1980s. Serological data indicate that the general population is susceptible to the H3N2 virus and that elderly and young children also lack protective antibodies against the H1N2 strains, suggesting that these viruses could be potential zoonotic threats. Continuous IAV surveillance and monitoring of the swine and human populations is strongly recommended.IMPORTANCEIn the global context, where swine serve as crucial intermediate hosts for influenza A viruses (IAVs), this study addresses the pressing concern of the zoonotic potential of novel reassortant strains. Conducted on a large scale in Chile, it presents a comprehensive account of swine influenza A virus diversity, covering 93.8% of the country's industrialized swine farms. The findings reveal eight distinct swine IAV genotypes, all carrying a complete internal gene cassette of pandemic H1N1 2009 origin, emphasizing potential increased replication and transmission fitness. Genetic divergence of H1N2 and H3N2 IAVs from globally reported strains raises alarms, with evidence suggesting introductions from human seasonal viruses since the mid-1980s. A detailed serological analysis underscores the zoonotic threat, indicating susceptibility in the general population to swine H3N2 and a lack of protective antibodies in vulnerable demographics. These data highlight the importance of continuous surveillance, providing crucial insights for global health organizations. |
Outbreak of fusarium solani meningitis in immunocompetent persons associated with neuraxial blockade in Durango, Mexico, 2022-2023
García-Rodríguez G , Duque-Molina C , Kondo-Padilla I , Zaragoza-Jiménez CA , González-Cortés VB , Flores-Antonio R , Villa-Reyes T , Vargas-Rubalcava A , Ruano-Calderon LÁ , Tinoco-Favila JC , Sánchez-Salazar HC , Rivas-Ruiz R , Castro-Escamilla O , Martínez-Gamboa RA , González-Lara F , López-Martínez I , Chiller TM , Pelayo R , Bonifaz LC , Robledo-Aburto Z , Alcocer-Varela J . Open Forum Infect Dis 2024 11 (2) ofad690 BACKGROUND: Fungal meningitis can be associated with epidural anesthesia procedures. Fusariosis is a rare infection typically affecting immunocompromised patients and rarely causes meningitis. During 2022-2023, public health officials responded to a large outbreak of Fusarium solani meningitis associated with epidural anesthesia in Durango, Mexico. METHODS: The public health response and epidemiological and clinical features of patients affected by this outbreak were described. Coordinated actions were addressed to identify the etiological agent, determine its drug susceptibility, develop diagnostic tests, and implement clinical and epidemiological protocols. Retrospective analyses of clinical variables and outcomes were performed to determine association with better patient survival. RESULTS: A total of 1801 persons exposed to epidural anesthesia were identified, of whom 80 developed meningitis. Fusarium solani was found in 3 brain biopsies and showed susceptibility to voriconazole and amphotericin B. After F solani polymerase chain reaction (PCR) implementation, 57 patients with meningitis were PCR-screened, and 31 (38.8%) had a positive result. Most patients were female (95%), and cesarean section was the most common surgical procedure (76.3%). The case fatality rate was 51.3% (41 patients) and the median hospitalization duration was 39.5 days (interquartile range, 18-86 days). Seventy-one patients (88.8%) received voriconazole/amphotericin B and 64 subjects (80%) additionally received steroids. Cox regression analysis showed an increased lethality risk in patients who received antifungal treatment after 5 days (hazard ratio, 2.1 [95% confidence interval, 1.01-4.48], P < .05). CONCLUSIONS: The F solani meningitis outbreak in Durango was an unprecedented medical challenge. Timely treatment and effective healthcare management were associated with better survival outcomes. |
Corrigendum to - "Single oral dose for HIV pre or post-exposure prophylaxis: user desirability and biological efficacy in macaques" [eBioMedicine 58(2020) 102894]
Massud I , Ruone S , Zlotorzynska M , Haaland R , Mills P , Cong ME , Kelley K , Johnson R , Holder A , Dinh C , Khalil G , Pan Y , Kelley CF , Sanchez T , Heneine W , García-Lerma JG . EBioMedicine 2024 101 105014 |
Identifying delays in healthcare seeking and provision: The Three Delays-in-Healthcare and mortality among infants and children aged 1-59 months
Garcia Gomez E , Igunza KA , Madewell ZJ , Akelo V , Onyango D , El Arifeen S , Gurley ES , Hossain MZ , Chowdhury MAI , Islam KM , Assefa N , Scott JAG , Madrid L , Tilahun Y , Orlien S , Kotloff KL , Tapia MD , Keita AM , Mehta A , Magaço A , Torres-Fernandez D , Nhacolo A , Bassat Q , Mandomando I , Ogbuanu I , Cain CJ , Luke R , Kamara SIB , Legesse H , Madhi S , Dangor Z , Mahtab S , Wise A , Adam Y , Whitney CG , Mutevedzi PC , Blau DM , Breiman RF , Tippett Barr BA , Rees CA . PLOS Glob Public Health 2024 4 (2) e0002494 Delays in illness recognition, healthcare seeking, and in the provision of appropriate clinical care are common in resource-limited settings. Our objective was to determine the frequency of delays in the "Three Delays-in-Healthcare", and factors associated with delays, among deceased infants and children in seven countries with high childhood mortality. We conducted a retrospective, descriptive study using data from verbal autopsies and medical records for infants and children aged 1-59 months who died between December 2016 and February 2022 in six sites in sub-Saharan Africa and one in South Asia (Bangladesh) and were enrolled in Child Health and Mortality Prevention Surveillance (CHAMPS). Delays in 1) illness recognition in the home/decision to seek care, 2) transportation to healthcare facilities, and 3) the receipt of clinical care in healthcare facilities were categorized according to the "Three Delays-in-Healthcare". Comparisons in factors associated with delays were made using Chi-square testing. Information was available for 1,326 deaths among infants and under 5 children. The majority had at least one identified delay (n = 854, 64%). Waiting >72 hours after illness recognition to seek health care (n = 422, 32%) was the most common delay. Challenges in obtaining transportation occurred infrequently when seeking care (n = 51, 4%). In healthcare facilities, prescribed medications were sometimes unavailable (n = 102, 8%). Deceased children aged 12-59 months experienced more delay than infants aged 1-11 months (68% vs. 61%, P = 0.018). Delays in seeking clinical care were common among deceased infants and children. Additional study to assess the frequency of delays in seeking clinical care and its provision among children who survive is warranted. |
Author Correction: Ultra-long-acting in-situ forming implants with cabotegravir protect female macaques against rectal SHIV infection
Young IC , Massud I , Cottrell ML , Shrivastava R , Maturavongsadit P , Prasher A , Wong-Sam A , Dinh C , Edwards T , Mrotz V , Mitchell J , Seixas JN , Pallerla A , Thorson A , Schauer A , Sykes C , De la Cruz G , Montgomery SA , Kashuba ADM , Heneine W , Dobard CW , Kovarova M , Garcia JV , GarcÎŻa-Lerma JG , Benhabbour SR . Nat Commun 2024 15 (1) 1054 |
Notes from the field: Dengue outbreak - Peru, 2023
Munayco CV , Valderrama Rosales BY , Mateo Lizarbe SY , Yon Fabian CR , Peña Sánchez R , Vásquez Sánchez CH , García MP , Padilla-Rojas C , Suárez V , Sánchez-González L , Jones FK , Kohatsu L , Adams LE , Morgan J , Paz-Bailey G . MMWR Morb Mortal Wkly Rep 2024 73 (4) 86-88 |
Deaths of U.S. citizens undergoing cosmetic surgery - Dominican Republic, 2009-2022
Hudson M , Matos JA , Alvarez B , Safstrom J , Torres F , Premjee S , Bonilla L , Park B , Bancroft E , Garcia M . MMWR Morb Mortal Wkly Rep 2024 73 (3) 62-65 Although infections resulting from cosmetic surgery performed outside the United States have been regularly reported, deaths have rarely been identified. During 2009-2022, 93 U.S. citizens died after receiving cosmetic surgery in the Dominican Republic. The number of deaths increased from a mean of 4.1 per year during 2009-2018 to a mean of 13.0 during 2019-2022 with a peak in of 17 in 2020. A subset of post-cosmetic surgery deaths occurring during peak years was investigated, and most deaths were found to be the result of embolic events (fat emboli or venous thromboembolism) for which a high proportion of the patients who died had risk factors, including obesity and having multiple procedures performed during the same operation. These risk factors might have been mitigated or prevented with improved surgical protocols and postoperative medical care, including prophylactic measures against venous thromboembolism. U.S. citizens interested in receiving elective cosmetic surgery outside the United States should consult with their health care professionals regarding their risk for adverse outcomes. Public health authorities can support provider education on the importance of preoperative patient evaluation and the potential danger of performing multiple cosmetic procedures in one operation. |
A qualitative assessment of cleaning and hand hygiene practices at shelters serving people experiencing homelessness during the COVID-19 pandemic, Atlanta, GA - May-June, 2020
Besrat BN , Mosites E , Montgomery MP , Garcia-Williams AG , Trautner E , Clarke KEN , Marshall B , Vassell C , Rutt C , Jones SL . BMC Public Health 2024 24 (1) 247 BACKGROUND: Cleaning practices and hand hygiene are important behaviors to prevent and control the spread of infectious disease, especially in congregate settings. This project explored hygiene- and cleaning-related experiences in shelters serving people experiencing homelessness (PEH) during May-June 2020 of the COVID-19 pandemic. METHODS: We conducted qualitative, in-depth interviews by phone with 22 staff from six shelters in Atlanta, Georgia. The interview guide included questions about cleaning routines, cleaning barriers and facilitators, cleaning promotion, hand hygiene promotion, and hand hygiene barriers and facilitators. We analyzed interview transcripts using thematic analysis. RESULTS: Multiple individuals, such as shelter individuals (clients), volunteers, and staff, played a role in shelter cleaning. Staff reported engaging in frequent hand hygiene and cleaning practices. Barriers to cleaning included staffing shortages and access to cleaning supplies. Staff reported barriers (e.g., differing perceptions of cleanliness) for clients who were often involved in cleaning activities. Barriers to hand hygiene included limited time to wash hands, forgetting, and inconvenient handwashing facilities. Specific guidance about when and how to clean, and what supplies to use, were requested. CONCLUSION: During the early months of the COVID-19 pandemic, shelters serving PEH in the Atlanta-metro area needed resources and support to ensure sufficient staffing and supplies for cleaning activities. As part of future pandemic planning and outbreak prevention efforts, shelters serving PEH could benefit from specific guidance and training materials on cleaning and hand hygiene practices. |
Extended post-exposure protection against vaginal SHIV infection with tenofovir alafenamide fumarate/elvitegravir inserts in macaques
Makarova N , Singletary T , Peet MM , Mitchell J , Bachman S , Holder A , Dinh C , Lipscomb J , Agrahari V , Mendoza M , Pan Y , Heneine W , Clark MR , García-Lerma JG , Doncel GF , Smith JM . J Infect Dis 2023 Vaginal inserts that can be used on demand before or after sex may be a desirable HIV prevention option for women. We recently showed that inserts containing tenofovir alafenamide fumarate (TAF/20mg) and elvitegravir (EVG/16mg) were highly protective against repeated SHIV vaginal exposures when administered to macaques 4h before or after virus exposure (93% and 100%, respectively). Here, we show in the same macaque model that insert application 8h or 24h after exposure maintains high efficacy (94.4% and 77.2%, respectively). These data extend the protective window by TAF/EVG inserts and inform their clinical development for on-demand prophylaxis in women. |
2019 ASCCP risk-based management consensus guidelines: Updates through 2023
Perkins RB , Guido RS , Castle PE , Chelmow D , Einstein MH , Garcia F , Huh WK , Kim JJ , Moscicki AB , Nayar R , Saraiya M , Sawaya GF , Wentzensen N , Schiffman M . J Low Genit Tract Dis 2024 28 (1) 3-6 This Research Letter summarizes all updates to the 2019 Guidelines through September 2023, including: endorsement of the 2021 Opportunistic Infections guidelines for HIV+ or immunosuppressed patients; clarification of use of human papillomavirus testing alone for patients undergoing observation for cervical intraepithelial neoplasia 2; revision of unsatisfactory cytology management; clarification that 2012 guidelines should be followed for patients aged 25 years and older screened with cytology only; management of patients for whom colposcopy was recommended but not completed; clarification that after treatment for cervical intraepithelial neoplasia 2+, 3 negative human papillomavirus tests or cotests at 6, 18, and 30 months are recommended before the patient can return to a 3-year testing interval; and clarification of postcolposcopy management of minimally abnormal results. |
Preexposure prophylaxis uptake among spanish-speaking transgender women: A randomized controlled trial in North and South Carolina, 2019-2022
Rhodes SD , Alonzo J , Mann-Jackson L , Aviles LR , Tanner AE , Galindo CA , Bessler PA , Courtenay-Quirk C , Garcia M , Sucaldito AD , Smart BD , Goldenberg T , Reboussin BA . Am J Public Health 2024 114 (1) 68-78 Objectives. To evaluate Chicas Creando Acceso a la Salud (Girls Creating Access to Health; ChiCAS), a Spanish-language, small-group intervention designed to increase preexposure prophylaxis (PrEP) use, consistent condom use, and medically supervised gender-affirming hormone therapy use among Spanish-speaking transgender Latinas who have sex with men. Methods. Participants were 144 HIV-negative Spanish-speaking transgender Latinas, aged 18 to 59 years, living in North and South Carolina. From July 2019 to July 2021, we screened, recruited, and randomized them to the 2-session ChiCAS intervention or the delayed-intervention waitlist control. Participants completed assessments at baseline and 6-month follow-up. Follow-up retention was 94.4%. Results. At follow-up, relative to control participants, ChiCAS participants reported increased PrEP use (adjusted odds ratio [AOR] = 4.64; 95% confidence interval [CI] = 1.57, 13.7; P < .006). However, ChiCAS participants did not report increased use of condoms or medically supervised gender-affirming hormone therapy. ChiCAS participants reported increases in knowledge of HIV (P < .001), sexually transmitted infections (P < .001), and gender-affirming hormone therapy (P = .01); PrEP awareness (P < .001), knowledge (P < .001), and readiness (P < .001); condom use skills (P < .001); and community attachment (P < .001). Conclusions. The ChiCAS intervention was efficacious in increasing PrEP use among Spanish-speaking, transgender Latinas in this trial. (Am J Public Health. 2024;114(1):68-78. https://doi.org/10.2105/AJPH.2023.307444). |
Healthcare providers' knowledge and clinical practice surrounding shigellosis - DocStyles Survey, 2020
Haston JC , Ford L , Vanden Esschert KL , Plumb ID , Logan N , Francois Watkins LK , Garcia-Williams AG . BMC Prim Care 2023 24 (1) 267 BACKGROUND: Shigellosis is an acute diarrheal disease transmitted through contaminated food, water, objects, poor hand hygiene, or sexual activity. Healthcare providers (HCP) may not be aware of the multiple routes of Shigella transmission, populations at increased risk, or importance of antibiotic susceptibility testing (AST). This study assessed HCP knowledge and clinical practices regarding shigellosis and antibiotic resistance. METHODS: Porter Novelli Public Services administered a web-based survey (Fall DocStyles 2020) to HCP in the United States. Pediatricians, primary care physicians, nurse practitioners, and physician assistants completed questions about knowledge and clinical practice of acute diarrhea and shigellosis. RESULTS: Of 2196 HCP contacted, 1503 responded (68% response rate). Most identified contaminated food (85%) and water (79%) as routes of Shigella transmission; fewer recognized person-to-person contact (40%) and sexual activity (18%). Men who have sex with men (MSM) were identified as being at risk for shigellosis by 35% of respondents. Most reported counseling patients to wash hands (86%) and avoid food preparation (77%) when ill with shigellosis; 29% reported recommending avoiding sex. Many HCP reported treating shigellosis empirically with ciprofloxacin (62%) and azithromycin (32%), and 29% reported using AST to guide treatment. CONCLUSIONS: We identified several gaps in shigellosis knowledge among HCP including MSM as a risk group, person-to-person transmission, and appropriate antibiotic use. Improving HCP education could prevent the spread of shigellosis, including drug-resistant infections, among vulnerable populations. |
Multimorbidity in systemic lupus erythematosus in a population-based cohort: the lupus Midwest network
Figueroa-Parra G , Meade-Aguilar JA , Hulshizer CA , Gunderson TM , Chamberlain AM , Thanarajasingam U , Greenlund KJ , Barbour KE , Crowson CS , Duarte-García A . Rheumatology (Oxford) 2023 OBJECTIVES: To assess the prevalence and incidence of multimorbidity and the association with the SLICC/ACR damage index (SDI) among patients with systemic lupus erythematosus (SLE). METHODS: Using prevalent and incident population-based cohorts of patients with SLE and their matched comparators, we assessed 57 chronic conditions. Chronic conditions were categorized as SDI-related or SDI-unrelated. Multimorbidity was defined as the presence of 2+ chronic conditions. Multimorbidity at prevalence and incidence/index was compared between cohorts using logistic regression. Cox models were used to examine development of multimorbidity after SLE incidence. RESULTS: The prevalent cohort included 449 patients with established SLE on January 1, 2015. They were three times more likely to have multimorbidity compared with non-SLE comparators (OR 2.98, 95% CI 2.18-4.11). The incident cohort included 270 patients with new-onset SLE. At SLE incidence, patients with SLE were more likely to have multimorbidity than comparators (OR 2.27, 95% CI 1.59-3.27). After incidence, the risk of developing multimorbidity was 2-fold higher among patients with SLE than comparators (hazard ratio (HR) 2.11, 95% CI 1.59-2.80). Development of multimorbidity was higher in patients with SLE based on SDI-related (HR 2.91, 95% CI 2.17-3.88) and SDI-unrelated conditions (HR 1.73, 95% CI, 1.32-2.26). CONCLUSION: Patients with SLE have a higher burden of multimorbidity, even before the onset of the disease. The risk disparity continues after SLE classification and is also seen in a prevalent SLE cohort. Multimorbidity is driven both by SDI-related and unrelated conditions. |
Multiantigen print immunoassay (MAPIA) for the diagnosis of neurocysticercosis: a single-center diagnostic optimization and accuracy study in Lima, Peru
Toribio L , Guzman C , Noazin S , Zimic-Sheen A , Zimic M , Gonzales I , Saavedra H , Pretell EJ , Bustos JA , Handali S , García HH . J Clin Microbiol 2023 61 (12) e0076023 Neurocysticercosis (NCC) is the most common helminthic infection of the human central nervous system. The antibody detection assay of choice is the enzyme-linked immunoelectrotransfer blot assay using lentil-lectin purified parasite antigens (LLGP-EITB, Western blot), an immunoassay with exceptional performance in clinical samples. However, its use is mainly restricted to a few research laboratories because the assay is labor-intensive and requires sophisticated equipment, expertise, and large amounts of parasite material for preparation of reagents. We report a new immunoprint assay (MAPIA) that overcomes most of these barriers. We initially compared the performance of five different antigen combinations in a subset of defined samples in the MAPIA format. After selecting the best-performing assay format (a combination of rGP50 + rT24H + sTs14 antigens), 148 archived serum samples were tested, including 40 from individuals with parenchymal NCC, 40 with subarachnoid NCC, and 68 healthy controls with no evidence of neurologic disease. MAPIA using three antigens (rGP50 + rT24H + sTs14) was highly sensitive and specific for detecting antibodies in NCC. It detected 39 out of 40 (97.5%) parenchymal NCC cases and 40/40 (100%) subarachnoid cases and was negative in 67 out of 68 (98.53%) negative samples. MAPIA using three recombinant and synthetic antigens is a simple and economical tool with a performance equivalent to the LLGP-EITB assay for the detection of specific antibodies to NCC. The MAPIA overcomes existing barriers to adoption of the EITG LLGP and is a candidate for worldwide use. |
Programme science: a route to effective coverage and population-level impact for HIV and sexually transmitted infection prevention
McClarty LM , Becker ML , García PJ , Garnett GP , Dallabetta GA , Ward H , Aral SO , Blanchard JF . Lancet HIV 2023 10 (12) e825-e834 Improvements in context-specific programming are essential to address HIV and other sexually transmitted and blood-borne infection epidemics globally. A programme science approach emphasises the need for context-specific evidence and knowledge, generated on an ongoing basis, to inform timely and appropriate programmatic decisions. We aim to accelerate and improve the use of embedded research, inquiry, and learning to optimise population-level impact of public health programmes and to introduce an effective programme coverage framework as one tool to facilitate this goal. The framework was developed in partnership with public health experts in HIV and sexually transmitted and blood-borne infections through several workshops and meetings. The framework is a practice-based tool that centres on the use of data from iterative cycles of programme-embedded research and learning, as well as routine programme monitoring, to refine the strategy and implementation of a programme. This programme science approach aims to reduce programme coverage gaps, to optimise impact at the population level, and to achieve effective coverage. This framework should facilitate the generation of programme-embedded research and learning agendas to inform resource allocation, optimise population-level impact, and achieve equitable and effective programme coverage. |
Development and validation of a risk model for hospital-acquired venous thrombosis: The Medical Inpatients Thrombosis and Hemostasis (MITH) Study
Zakai NA , Wilkinson K , Sparks AD , Packer RT , Koh I , Roetker NS , Repp AB , Thomas R , Holmes CE , Cushman M , Plante TB , Al-Samkari H , Pishko AM , Wood WA , Masias C , Gangaraju R , Li A , Garcia D , Wiggins KL , Schaefer JK , Hooper C , Smith NL , McClure LA . J Thromb Haemost 2023 BACKGROUND: Regulatory organizations recommend assessing hospital-acquired (HA) venous thromboembolism (VTE) risk for medical inpatients. OBJECTIVES: To develop and validate a risk assessment model (RAM) for HA-VTE in medical inpatients using objective and assessable risk factors knowable at admission. PATIENTS/METHODS: The development cohort included people admitted to medical services at the University of Vermont Medical Center (Burlington, VT, USA) between 2010-19 and the validation cohorts people admitted to Hennepin County Medical Center (Minneapolis, MN, USA), University of Michigan Medical Center (Ann Arbor, MI, USA), and Harris Health Systems (Houston, TX, USA). Individuals with VTE at admission, <18-years old, and admitted for <1 midnight were excluded. We used a Bayesian penalized regression technique to selected candidate HA-VTE risk factors for final inclusion in the RAM. RESULTS: The development cohort included 60,633 admissions and 227 HA-VTE and the validation cohorts 111,269 admissions and 651 HA-VTE. Seven HA-VTE risk factors with t-statistics ≥1.5 were included in the RAM: prior history of VTE, low hemoglobin, elevated creatinine, active cancer, hyponatremia, elevated red cell distribution width, and malnutrition. The AUC and calibration slope were 0.72 and 1.10. The AUC and calibration slopes were 0.70 and 0.93 at Hennepin County Medical Center, 0.70 and 0.87 at the University of Michigan Medical Center, and 0.71 and 1.00 at Harris Health Systems. The RAM performed well stratified by age, sex, and race. CONCLUSIONS: We developed and validated a RAM for HA-VTE in medical inpatients. By quantifying risk, clinicians can determine the potential benefits of measures to reduce HA-VTE. |
The effects of policy changes and human mobility on the COVID-19 epidemic in the Dominican Republic, 2020-2021
Maloney P , Kompaniyets L , Yusuf H , Bonilla L , Figueroa C , Garcia M . Prev Med Rep 2023 36 102459 Recent advances in technology can be leveraged to enhance public health research and practice. This study aimed to assess the effects of mobility and policy changes on COVID-19 case growth and the effects of policy changes on mobility using data from Google Mobility Reports, information on public health policy, and COVID-19 testing results. Multiple bivariate regression analyses were conducted to address the study objectives. Policies designed to limit mobility led to decreases in mobility in public areas. These policies also decreased COVID-19 case growth. Conversely, policies that did not restrict mobility led to increases in mobility in public areas and led to increases in COVID-19 case growth. Mobility increases in public areas corresponded to increases in COVID-19 case growth, while concentration of mobility in residential areas corresponded to decreases in COVID-19 case growth. Overall, restrictive policies were effective in decreasing COVID-19 incidence in the Dominican Republic, while permissive policies led to increases in COVID-19 incidence. |
Mapping SARS-CoV-2 antigenic relationships and serological responses
Wilks SH , Mühlemann B , Shen X , Türeli S , LeGresley EB , Netzl A , Caniza MA , Chacaltana-Huarcaya JN , Corman VM , Daniell X , Datto MB , Dawood FS , Denny TN , Drosten C , Fouchier RAM , Garcia PJ , Halfmann PJ , Jassem A , Jeworowski LM , Jones TC , Kawaoka Y , Krammer F , McDanal C , Pajon R , Simon V , Stockwell MS , Tang H , van Bakel H , Veguilla V , Webby R , Montefiori DC , Smith DJ . Science 2023 382 (6666) eadj0070 During the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, multiple variants escaping preexisting immunity emerged, causing reinfections of previously exposed individuals. Here, we used antigenic cartography to analyze patterns of cross-reactivity among 21 variants and 15 groups of human sera obtained after primary infection with 10 different variants or after messenger RNA (mRNA)-1273 or mRNA-1273.351 vaccination. We found antigenic differences among pre-Omicron variants caused by substitutions at spike-protein positions 417, 452, 484, and 501. Quantifying changes in response breadth over time and with additional vaccine doses, our results show the largest increase between 4 weeks and >3 months after a second dose. We found changes in immunodominance of different spike regions, depending on the variant an individual was first exposed to, with implications for variant risk assessment and vaccine-strain selection. |
Assembly and phylogeographical analysis of novel Taenia solium mitochondrial genomes suggest stratification within the African-American genotype
Jiménez-Avalos G , Soto-Obando A , Solis M , Gilman RH , Cama V , Gonzalez AE , García HH , Sheen P , Requena D , Zimic M . Parasit Vectors 2023 16 (1) 349 BACKGROUND: Taenia solium is a parasite of public health concern, causing human taeniasis and cysticercosis. Two main genotypes have been identified: Asian and African-American. Although characterizing T. solium genotypes is crucial to understanding the genetic epidemiology of its diseases, not much is known about the differences between T. solium mitochondrial genomes from different genotypes. Also, little is known about whether genotypes are further subdivided. Therefore, this study aimed to identify a set of point mutations distributed throughout the T. solium mitochondrial genome that differentiate the African-American from the Asian genotype. Another objective was to identify whether T. solium main genotypes are further stratified. METHODS: One Mexican and two Peruvian T. solium mitochondrial genomes were assembled using reads available in the NCBI Sequence Read Archive and the reference genome from China as a template. Mutations with respect to the Chinese reference were identified by multiple genome alignment. Jensen-Shannon and Grantham scores were computed for mutations in protein-coding genes to evaluate whether they affected protein function. Phylogenies by Bayesian inference and haplotype networks were constructed using cytochrome c oxidase subunit 1 and cytochrome b from these genomes and other isolates to infer phylogeographical relationships. RESULTS: A set of 31 novel non-synonymous point mutations present in all genomes of the African-American genotype were identified. These mutations were distributed across the mitochondrial genome, differentiating the African-American from the Asian genotype. All occurred in non-conserved protein positions. Furthermore, the analysis suggested a stratification of the African-American genotypes into an East African and a West African sublineage. CONCLUSIONS: A novel set of 31 non-synonymous mutations differentiating the main T. solium genotypes was identified. None of these seem to be causing differences in mitochondrial protein function between parasites of the two genotypes. Furthermore, two sublineages within the African-American genotype are proposed for the first time. The presence of the East African sublineage in the Americas suggests an underestimated connection between East African and Latin American countries that might have arisen in the major slave trade between Portuguese Mozambique and the Americas. The results obtained here help to complete the molecular epidemiology of the parasite. |
Correction to: Changes to virus taxonomy and the ICTV Statutes ratifed by the International Committee on Taxonomy of Viruses (2023)
Zerbini FM , Siddell SG , Lefkowitz EJ , Mushegian AR , Adriaenssens EM , Alfenas-Zerbini P , Dempsey DM , Dutilh BE , García ML , Hendrickson RC , Junglen S , Krupovic M , Kuhn JH , Lambert AJ , Ĺobocka M , Oksanen HM , Robertson DL , Rubino L , Sabanadzovic S , Simmonds P , Smith DB , Suzuki N , Van Doorslaer K , Vandamme AM , Varsani A . Arch Virol 2023 168 (11) 269 The correction refers to the sentence: Another notable taxonomic change approved in this ratification was the inclusion of gene transfer agents (GTAs) in the classification scheme as viriforms [153]. | | The sentence should read: Another notable taxonomic change approved in this ratification was the inclusion of gene transfer agents (GTAs) in the classification scheme as viriforms [154]. |
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