Last data update: Aug 15, 2025. (Total: 49733 publications since 2009)
| Records 1-21 (of 21 Records) |
| Query Trace: Rana T[original query] |
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| A systematic review and meta-analysis of the global prevalence of human enteric adenovirus infections
Wikswo ME , Kambhampati AK , Mattison CP , Chhabra P , Olojo O , Rana T , Vinjé J , Kirkwood CD , Parashar UD , Mirza SA . J Infect Public Health 2025 18 (7) 102800 Human adenovirus (HAdV), especially HAdV species F (HAdV-F) is recognized as a cause of acute gastroenteritis (AGE) worldwide. To assess the global prevalence of HAdV in case-patients of all ages with AGE, we conducted a systematic literature search for studies published in English during 2015-2022. We generated pooled prevalence estimates using generalized linear mixed models. Using data from 147 included articles, the overall pooled prevalence among AGE case-patients of any species of HAdV (pan-HAdV) was 5.8 % and 6.0 % for HAdV-F. The prevalence of HAdV was significantly higher among case-patients < 5 years of age compared with case-patients ≥ 5 years of age (pan-HAdV: 6.6 % vs. 2.0 %, p < 0.0001; HAdV-F: 8.7 % vs. 2.3 %, p = 0.04). Prevalence was significantly higher in high mortality developing countries and lowest in developed countries (pan-HAdV: 9.4 % vs. 4.0 %, p < 0.0001; HAdV-F: 11.6 % vs. 3.2 %, p = 0.0003). Understanding the burden of HAdV-associated AGE may be useful for targeted interventions, including future vaccine development. |
| Immunogenicity and safety of a measles and rubella-containing vaccine at age 6 and 9 months in Bangladesh: an open-label, randomised trial
Sayi TS , Sharapov UM , Matson Z , Coughlin MM , Crooke SN , An Q , Knapp JK , Aziz AB , Yunus M , Haque W , Rana S , Khan MAF , Alexander JP , Kretsinger K , Rota PA , Zaman K , Anand A . Lancet Child Adolesc Health 2025 BACKGROUND: The first dose of measles-rubella (MR) vaccine is routinely administered to infants aged 9 months as part of a standard two-dose schedule. However, during large measles outbreaks and in other settings of increased circulation or increased risk, WHO recommends administering a supplementary dose at age 6 months to protect young infants. We aimed to assess the immunogenicity and safety of a first dose of MR vaccine administered to infants aged 6 months and its effect on the immune response to the routine MR vaccine at age 9 months. METHODS: This open-label, randomised trial enrolled healthy infants aged 6 months in Matlab, Bangladesh, who had never received an MR vaccine dose and had no history of measles or rubella. Using a computer-generated block randomisation scheme, infants were randomly assigned (1:1) to receive either two doses of the MR vaccine, one at age 6 months and the second at age 9 months (two-dose group), or one dose at age 9 months (one-dose group). Baseline characteristics were recorded for all enrolled participants at age 6 months. Blood samples were drawn for antibody assays before each vaccination and at final follow up when infants were aged 11 months. The primary outcome was immunogenicity of a first MR vaccine in infants aged 6 months or 9 months and the immunogenicity of a second MR vaccine in infants aged 9 months who received their first MR vaccine at 6 months. Immunogenicity was measured as the proportion of infants who seroconverted in the 12 weeks after vaccination at age 6 months or the 8 weeks after vaccination at age 9 months. Seroconversion was defined as a 4-times increase in IgG concentrations relative to the pre-vaccination concentrations or achieving seroprotective antibody concentrations between study timepoints. The modified intention-to-treat analysis included all infants who received MR vaccines per group assignment and had antibody results at baseline, 9 months, and 11 months. All enrolled infants were included in the safety analysis of the immediate reactions (observed by study staff at the fixed-site clinic in the first 30 min after vaccination), adverse events within 48 h of vaccination among infants in the two-dose group receiving their first MR vaccine at age 6 months, and adverse events observed by study staff or parents at any time during the study. The trial is registered on ClinicalTrials.gov, NCT03071575, and is closed to enrolment. FINDINGS: Between March 9, 2017, and March 18, 2018, 620 infants were enrolled and randomly assigned to the two study groups (312 in the two-dose group and 308 in the one-dose group). Of the 301 infants vaccinated at 6 months, 282 seroconverted for measles (94%, 95% CI 90-96), and 283 seroconverted for rubella (94%, 91-96). By 11 months, after receiving a second dose at age 9 months, 297 (cumulative 99%, 95% CI 97-100) infants seroconverted for measles and 297 infants seroconverted for rubella (cumulative 99%, 96-100). Of the 292 infants vaccinated at 9 months only, 291 seroconverted for both antigens by age 11 months (100%, 95% CI 98-100). 123 adverse events were observed; 72 in the two-dose group and 51 in the one-dose group, with no differences in severity (p=0·78) or outcomes (p=0·71) by study group. 12 (17%) events in the two-dose group and seven (14%) in the one-dose group were severe; most events were mild, resolved without sequelae, and were unrelated to the MR vaccine. One death occurred in the one-dose group before the infant received the 9-month dose of the vaccine, and therefore was deemed to be unrelated to the MR vaccine. INTERPRETATION: The data presented support use of MR vaccine at 6 months to protect young infants during measles outbreaks and in settings with increased risk or high transmission. We recommend additional studies to evaluate longer-term immunity based on age at vaccination. FUNDING: US Centers for Disease Control and Prevention. TRANSLATIONS: For the French and Spanish translations of the abstract see Supplementary Materials section. |
| Preexposure prophylaxis among pregnant and lactating people in 18 PEPFAR-supported countries: a review of HIV strategies and guidelines
Abadan SS , Hawryluk L , Montandon M , Flowers N , Schueller J , Eakle R , Patel P , Chevalier MS , Rana S , Amzel A . Glob Health Sci Pract 2022 10 (6) Introduction: Pregnant and lactating people (PLP) experience heightened risk of acquiring HIV, which adversely impacts their health and increases the risk for vertical HIV transmission. Preexposure prophylaxis (PrEP), as part of a combination prevention package, including condoms, sexually transmitted infection prevention, and regular HIV testing, is a safe, efficacious method to prevent HIV infections among PLP and their infants. This article examines the evolution of strategies and guidance on PrEP services for PLP from 18 countries supported by the U.S. President's Emergency Plan for AIDS Relief (PEPFAR). |
| Rabies healthcare-seeking behaviors of urban and peri-urban residents: Results from a rabies knowledge, attitudes, and practices survey, Bangladesh, 2018
Ross YB , Hoque M , Blanton JD , Kennedy ED , Rana MS , Tahmina S , Bonaparte S , Head JR , Wallace RM . PLoS Negl Trop Dis 2022 16 (8) e0010634 Rabies is one of the most lethal infectious diseases, with those living in Asia and Africa having the highest risk of dying from rabies. We conducted a knowledge, attitudes and practices survey in urban and peri-urban areas of Bangladesh to describe canine bite rates, rabies knowledge, and healthcare seeking behaviors and barriers to human and dog vaccination. A bite risk assessment score (BRAS) and healthcare-seeking behavior score (HSBS) was calculated for each bite victim. Respondents were given two hypothetical situations to assess potential behaviors after a bite and willingness to pay for rabies vaccine and immunoglobulin. In total, 2,447 households participated in the survey and 85 bite victims were identified. The BRAS identified that 31% of bites posed no risk of rabies transmission. Multivariate analyses showed that living in Chittagong (β = 1.4; 95% CI: 0.1, 2.7) was associated with a higher HSBS. Findings presented here provide useful information regarding bite occurrences, healthcare-seeking behaviors, and a need for strategies to increase rabies awareness. |
| Pre-exposure prophylaxis (PrEP) uptake and service delivery adaptations during the first wave of the COVID-19 pandemic in 21 PEPFAR-funded countries.
Kerzner M , De AK , Yee R , Keating R , Djomand G , Stash S , Rana S , Kimmel A , Eakle R , Klucking S , Patel P . PLoS One 2022 17 (4) e0266280 BACKGROUND: Mitigation measures for the first wave of the COVID-19 pandemic and burden on health systems created challenges for pre-exposure prophylaxis (PrEP) service delivery. We examined PrEP uptake in PEPFAR programs before and after the start of the COVID-19 pandemic. METHODS: We studied two PEPFAR program monitoring indicators, using routine Monitoring, Evaluation, Reporting (MER) indicators capturing uptake of PrEP (PrEP_NEW) and overall use of PrEP (PrEP_CURR). We also analyzed descriptive program narratives to understand successes and challenges field teams encountered after the start of the COVID-19 pandemic. To assess changes in coverage of PrEP across 21 countries, we calculated the "PrEP to need ratio" (PnR) using a published methodology. We defined the pre-COVID time period as April 1, 2019 -March 31, 2020 and the COVID time period as April 1, 2020 -March 31, 2021. FINDINGS: The total number of persons who initiated PrEP increased by 157% from 233,250 in the pre-COVID-19 period compared with 599,935 in the COVID-19 period. All countries, except five, noted significant increases in PrEP uptake. PrEP uptake among adolescent girls and young women (AGYW) increased by 159% from 80,452 AGYW in the pre-COVID-19 period to 208,607 AGYW in the COVID-19 period. There were 77,430 key populations (KP) initiated on PrEP in the pre-COVID-19 period and 209,114 KP initiated in the COVID-19 period (a 170% increase). The PnR increased 214% in the COVID-19 period across all PEPFAR-supported countries. Adaptations, such as multi-month dispensing (MMD) of PrEP; virtual demand creation activities; decentralized, community-based and virtual service delivery, were implemented to maintain PrEP services. CONCLUSIONS: PEPFAR programs continued to maintain and initiate new clients on PrEP despite the challenges posed by the COVID-19 pandemic. Adaptations such as MMD of PrEP and use of technology were vital in expanding service delivery and increasing PrEP coverage. FUNDING: This project has been supported by the U.S. President's Emergency Plan for AIDS Relief. |
| Donor-derived tuberculosis among solid organ transplant recipients in the United States - 2008-2018
Malinis M , LaHoz RM , Vece G , Annambhotla P , Aslam S , Basavaraju SV , Bucio J , Danziger-Isakov L , Florescu DF , Jones JM , Rana M , Wolfe CR , Michaels MG . Transpl Infect Dis 2022 24 (2) e13800 Mycobacterium tuberculosis can be transmitted via organ donation and result in severe outcomes. To better understand donor-derived tuberculosis (DDTB), all potential transmissions reported to the Organ Procurement and Transplantation Network (OPTN) Ad Hoc Disease Transmission Advisory Committee between 2008-2018 were analyzed. Among 51 total reports, nine (17%) (9 donors/35 recipients) had 1 recipient with proven/probable disease transmission. Of these, eight were reported due to recipient disease, and one was reported due to a positive donor result. Proven/probable DDTB transmissions were reported in six lung and five non-lung recipients. The median time to diagnosis was 104 days post-transplant (range 0-165 days). Pulmonary TB, extrapulmonary TB, pulmonary plus extrapulmonary TB, and asymptomatic TB infection with positive interferon-gamma release assay were present in five, three, one, and two recipients, respectively. All recipients received treatment and survived except for one whose death was not attributed to TB. All donors associated with proven/probable DDTB had 1 TB risk factor. Six were born in a TB-endemic country, five had traveled to a TB-endemic country, 3 had been incarcerated, and 3 had latent TB infection. These cases highlight the importance of evaluating donors for TB based on risk factors. Early post-transplant TB in organ recipients of donors with TB risk factors requires prompt reporting to OPTN to identify other potential affected recipients and implement timely treatment interventions. This article is protected by copyright. All rights reserved. |
| Whole-genome sequencing of SARS-CoV-2 reveals the detection of G614 variant in Pakistan.
Umair M , Ikram A , Salman M , Khurshid A , Alam M , Badar N , Suleman R , Tahir F , Sharif S , Montgomery J , Whitmer S , Klena J . PLoS One 2021 16 (3) e0248371
Since its emergence in China, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread worldwide including Pakistan. During the pandemic, whole genome sequencing has played an important role in understanding the evolution and genomic diversity of SARS-CoV-2. Although an unprecedented number of SARS-CoV-2 full genomes have been submitted in GISAID and NCBI, data from Pakistan is scarce. We report the sequencing, genomic characterization, and phylogenetic analysis of five SARS-CoV-2 strains isolated from patients in Pakistan. The oropharyngeal swabs of patients that were confirmed positive for SARS-CoV-2 through real-time RT-PCR at National Institute of Health, Pakistan, were selected for whole-genome sequencing. Sequencing was performed using NEBNext Ultra II Directional RNA Library Prep kit for Illumina (NEW ENGLAND BioLabs Inc., MA, US) and Illumina iSeq 100 instrument (Illumina, San Diego, US). Based on whole-genome analysis, three Pakistani SARS-CoV-2 strains clustered into the 20A (GH) clade along with the strains from Oman, Slovakia, United States, and Pakistani strain EPI_ISL_513925. The two 19B (S)-clade strains were closely related to viruses from India and Oman. Overall, twenty-nine amino acid mutations were detected in the current study genome sequences, including fifteen missense and four novel mutations. Notably, we have found a D614G (aspartic acid to glycine) mutation in spike protein of the sequences from the GH clade. The G614 variant carrying the characteristic D614G mutation has been shown to be more infectious that lead to its rapid spread worldwide. This report highlights the detection of GH and S clade strains and G614 variant from Pakistan warranting large-scale whole-genome sequencing of strains prevalent in different regions to understand virus evolution and to explore their genetic diversity. |
| SARS-CoV-2 Infections among Recent Organ Recipients, March-May 2020, United States.
Jones JM , Kracalik I , Rana MM , Nguyen A , Keller BC , Mishkin A , Hoopes C , Kaleekal T , Humar A , Vilaro J , Im G , Smith L , Justice A , Leaumont C , Lindstrom S , Whitaker B , La Hoz RM , Michaels MG , Klassen D , Kuhnert W , Basavaraju SV . Emerg Infect Dis 2021 27 (2) 552-555 We conducted public health investigations of 8 organ transplant recipients who tested positive for severe acute respiratory syndrome coronavirus 2 infection. Findings suggest the most likely source of transmission was community or healthcare exposure, not the organ donor. Transplant centers should educate transplant candidates and recipients about infection prevention recommendations. |
| Temporal and geographic variability in time from HIV diagnosis to viral suppression in Alabama, 2012-2014
Batey DS , Dong X , Rogers RP , Merriweather A , Elopre L , Rana AI , Hall HI , Mugavero MJ . JMIR Public Health Surveill 2020 6 (2) e17217 BACKGROUND: Evaluation of the time from HIV diagnosis to viral suppression (VS) captures the collective effectiveness of HIV prevention and treatment activities in a given locale and provides a more global estimate of how effectively the larger HIV care system is working in a given geographic area or jurisdiction. OBJECTIVE: To evaluate temporal and geographic variability in VS among persons with newly diagnosed HIV infection in Alabama in 2012-2014. METHODS: With data from the National HIV Surveillance System, we evaluated median time from HIV diagnosis to VS (<200 c/mL) overall and stratified by Alabama public health area (PHA) among persons with HIV diagnosed during 2012-2014 using the Kaplan-Meier approach. RESULTS: Among 1,979 newly diagnosed persons, 1,181 (59.7%) achieved VS within 12 months of diagnosis; 52.6% in 2012, 59.5% in 2013, and 66.9% in 2014. Median time from HIV diagnosis to VS was 8 months; 10 months in 2012, 8 months in 2013, and 6 months in 2014. Across 11 PHAs in Alabama, 12-month VS ranged from 45.8% to 83.9%, and median time from diagnosis to VS ranged from five to 13 months. CONCLUSIONS: Temporal improvement in persons achieving VS following HIV diagnosis statewide in Alabama is encouraging. However, considerable geographic variability warrants further evaluation to inform public health action. Time from HIV diagnosis to VS represents a meaningful indicator that can be incorporated into public health surveillance and programming. CLINICALTRIAL: |
| Progress toward measles elimination - Pakistan, 2000-2018
Mere MO , Goodson JL , Chandio AK , Rana MS , Hasan Q , Teleb N , Alexander JP Jr . MMWR Morb Mortal Wkly Rep 2019 68 (22) 505-510 In 1997, the 21 countries in the World Health Organization (WHO) Eastern Mediterranean Region* (EMR) passed a resolution during the 41st session of the Regional Committee for the Eastern Mediterranean to eliminate measles(dagger) (1). In 2015, this goal was included as a priority in the Eastern Mediterranean Vaccine Action Plan 2016-2020 (2), approved at the 62nd session of the Regional Committee (3). To achieve measles elimination, the WHO Regional Office for the Eastern Mediterranean developed the following four-pronged strategy: 1) achieve >/=95% vaccination coverage with the first dose of measles-containing vaccine (MCV) among children in every district of each country through routine immunization services; 2) achieve >/=95% vaccination coverage with a second MCV dose in every district of each country either through implementation of a routine 2-dose vaccination schedule or through supplementary immunization activities (SIAs)( section sign); 3) conduct high-quality, case-based measles surveillance in all countries; and 4) provide optimal measles clinical case management, including dietary supplementation with vitamin A (4). Pakistan, an EMR country with a population of approximately 200 million, accounts for nearly one third of the overall EMR population. This report describes progress and challenges toward measles elimination in Pakistan during 2000-2018. During the study period, estimated coverage with the first MCV dose (MCV1) increased from 57% in 2000 to 76% in 2017. The second MCV dose (MCV2) was introduced nationwide in 2009, and MCV2 coverage increased from 30% in 2009 to 45% in 2017. During 2000-2018, approximately 232.5 million children received doses of MCV during SIAs. Reported confirmed measles incidence increased from an average of 24.6 per 1 million persons during 2000-2009 to an average of 80.4 during 2010-2018, with peaks in 2013 (230.3) and 2018 (153.6). In 2017 and 2018, the rates of suspected cases discarded as nonmeasles after investigation were 2.1 and 1.5 per 100,000 population, reflecting underreporting of cases. To achieve measles elimination, additional efforts are needed to increase MCV1 and MCV2 coverage, develop strategies to identify and reach communities not accessing immunization services, and increase sensitivity of case-based measles surveillance in all districts. |
| "Every Newborn-BIRTH" protocol: observational study validating indicators for coverage and quality of maternal and newborn health care in Bangladesh, Nepal and Tanzania
Day LT , Ruysen H , Gordeev VS , Gore-Langton GR , Boggs D , Cousens S , Moxon SG , Blencowe H , Baschieri A , Rahman AE , Tahsina T , Zaman SB , Hossain T , Rahman QS , Ameen S , El Arifeen S , Kc A , Shrestha SK , Kc NP , Singh D , Jha AK , Jha B , Rana N , Basnet O , Joshi E , Paudel A , Shrestha PR , Jha D , Bastola RC , Ghimire JJ , Paudel R , Salim N , Shamb D , Manji K , Shabani J , Shirima K , Mkopi N , Mrisho M , Manzi F , Jaribu J , Kija E , Assenga E , Kisenge R , Pembe A , Hanson C , Mbaruku G , Masanja H , Amouzou A , Azim T , Jackson D , Kabuteni TJ , Mathai M , Monet JP , Moran A , Ram P , Rawlins B , Saebo JI , Serbanescu F , Vaz L , Zaka N , Lawn JE . J Glob Health 2019 9 (1) 010902 Background: To achieve Sustainable Development Goals and Universal Health Coverage, programmatic data are essential. The Every Newborn Action Plan, agreed by all United Nations member states and >80 development partners, includes an ambitious Measurement Improvement Roadmap. Quality of care at birth is prioritised by both Every Newborn and Ending Preventable Maternal Mortality strategies, hence metrics need to advance from health service contact alone, to content of care. As facility births increase, monitoring using routine facility data in DHIS2 has potential, yet validation research has mainly focussed on maternal recall surveys. The Every Newborn - Birth Indicators Research Tracking in Hospitals (EN-BIRTH) study aims to validate selected newborn and maternal indicators for routine tracking of coverage and quality of facility-based care for use at district, national and global levels. Methods: EN-BIRTH is an observational study including >20 000 facility births in three countries (Tanzania, Bangladesh and Nepal) to validate selected indicators. Direct clinical observation will be compared with facility register data and a pre-discharge maternal recall survey for indicators including: uterotonic administration, immediate newborn care, neonatal resuscitation and Kangaroo mother care. Indicators including neonatal infection management and antenatal corticosteroid administration, which cannot be easily observed, will be validated using inpatient records. Trained clinical observers in Labour/Delivery ward, Operation theatre, and Kangaroo mother care ward/areas will collect data using a tablet-based customised data capturing application. Sensitivity will be calculated for numerators of all indicators and specificity for those numerators with adequate information. Other objectives include comparison of denominator options (ie, true target population or surrogates) and quality of care analyses, especially regarding intervention timing. Barriers and enablers to routine recording and data usage will be assessed by data flow assessments, quantitative and qualitative analyses. Conclusions: To our knowledge, this is the first large, multi-country study validating facility-based routine data compared to direct observation for maternal and newborn care, designed to provide evidence to inform selection of a core list of indicators recommended for inclusion in national DHIS2. Availability and use of such data are fundamental to drive progress towards ending the annual 5.5 million preventable stillbirths, maternal and newborn deaths. |
| Rotavirus surveillance in Pakistan during 2015-2016 reveals high prevalence of G12P[6]
Umair M , Salman M , Alam MM , Rana MS , Zaidi SSZ , Bowen MD , Aamir UB , Abbasi BH . J Med Virol 2018 90 (7) 1272-1276 The G12 rotavirus genotype has emerged globally since their first detection in 1987 from the Philippines; however it remains a rare cause of gastroenteritis in Pakistan. Rotavirus surveillance conducted during 2015-2016, assessed 3446 children <5 years hospitalized for gastroenteritis and found 802 (23.2%) positive on ELISA. Genotyping of a subset of positive samples (n = 319) revealed G12P[6] (11.28%) as the third most common G/P combination following G3P[8] (28.5%) and G1P[8] (12.5%); G2P[4] (10.65%) and G3P[6] (8.15%) were other frequently detected strains. Phylogenetic analysis of G12 strains from Pakistan revealed high genetic similarity to G12 strains from Italy, Thailand, Korea and Great Britain as well as local strains within G12 lineage III. In conclusion, G12P[6] was a major contributor of RVA gastroenteritis in Pakistani children. Robust surveillance after the introduction of rotavirus vaccines will help determine the evolution of G12 and other circulating genotypes in the country. This article is protected by copyright. All rights reserved. |
| Simultaneous Emergence of Multidrug-Resistant Candida auris on 3 Continents Confirmed by Whole-Genome Sequencing and Epidemiological Analyses.
Lockhart SR , Etienne KA , Vallabhaneni S , Farooqi J , Chowdhary A , Govender NP , Colombo AL , Calvo B , Cuomo CA , Desjardins CA , Berkow EL , Castanheira M , Magobo RE , Jabeen K , Asghar RJ , Meis JF , Jackson B , Chiller T , Litvintseva AP . Clin Infect Dis 2016 64 (2) 134-140
BACKGROUND: Candida auris, a multidrug-resistant yeast that causes invasive infections, was first described in 2009 in Japan and has since been reported from several countries. METHODS: To understand the global emergence and epidemiology of C. auris, we obtained isolates from 54 patients with C. auris infection from Pakistan, India, South Africa, and Venezuela during 2012-2015 and the type specimen from Japan. Patient information was available for 41 of the isolates. We conducted antifungal susceptibility testing and whole-genome sequencing (WGS). RESULTS: Available clinical information revealed that 41% of patients had diabetes mellitus, 51% had undergone recent surgery, 73% had a central venous catheter, and 41% were receiving systemic antifungal therapy when C. auris was isolated. The median time from admission to infection was 19 days (interquartile range, 9-36 days), 61% of patients had bloodstream infection, and 59% died. Using stringent break points, 93% of isolates were resistant to fluconazole, 35% to amphotericin B, and 7% to echinocandins; 41% were resistant to 2 antifungal classes and 4% were resistant to 3 classes. WGS demonstrated that isolates were grouped into unique clades by geographic region. Clades were separated by thousands of single-nucleotide polymorphisms, but within each clade isolates were clonal. Different mutations in ERG11 were associated with azole resistance in each geographic clade. CONCLUSIONS: C. auris is an emerging healthcare-associated pathogen associated with high mortality. Treatment options are limited, due to antifungal resistance. WGS analysis suggests nearly simultaneous, and recent, independent emergence of different clonal populations on 3 continents. Risk factors and transmission mechanisms need to be elucidated to guide control measures. |
| Global, regional, and national cancer incidence, mortality, years of life lost, years lived with disability, and disability-adjusted life-years for 32 cancer groups, 1990 to 2015: a systematic analysis for the Global Burden of Disease Study
Fitzmaurice C , Allen C , Barber RM , Barregard L , Bhutta ZA , Brenner H , Dicker DJ , Chimed-Orchir O , Dandona R , Dandona L , Fleming T , Forouzanfar MH , Hancock J , Hay RJ , Hunter-Merrill R , Huynh C , Hosgood HD , Johnson CO , Jonas JB , Khubchandani J , Kumar GA , Kutz M , Lan Q , Larson HJ , Liang X , Lim SS , Lopez AD , MacIntyre MF , Marczak L , Marquez N , Mokdad AH , Pinho C , Pourmalek F , Salomon JA , Sanabria JR , Sandar L , Sartorius B , Schwartz SM , Shackelford KA , Shibuya K , Stanaway J , Steiner C , Sun J , Takahashi K , Vollset SE , Vos T , Wagner JA , Wang H , Westerman R , Zeeb H , Zoeckler L , Abd-Allah F , Ahmed MB , Alabed S , Alam NK , Aldhahri SF , Alem G , Alemayohu MA , Ali R , Al-Raddadi R , Amare A , Amoako Y , Artaman A , Asayesh H , Atnafu N , Awasthi A , Saleem HB , Barac A , Bedi N , Bensenor I , Berhane A , Bernabe E , Betsu B , Binagwaho A , Boneya D , Campos-Nonato I , Castaneda-Orjuela C , Catala-Lopez F , Chiang P , Chibueze C , Chitheer A , Choi JY , Cowie B , Damtew S , das Neves J , Dey S , Dharmaratne S , Dhillon P , Ding E , Driscoll T , Ekwueme D , Endries AY , Farvid M , Farzadfar F , Fernandes J , Fischer F , GHiwot TT , Gebru A , Gopalani S , Hailu A , Horino M , Horita N , Husseini A , Huybrechts I , Inoue M , Islami F , Jakovljevic M , James S , Javanbakht M , Jee SH , Kasaeian A , Kedir MS , Khader YS , Khang YH , Kim D , Leigh J , Linn S , Lunevicius R , El Razek HM , Malekzadeh R , Malta DC , Marcenes W , Markos D , Melaku YA , Meles KG , Mendoza W , Mengiste DT , Meretoja TJ , Miller TR , Mohammad KA , Mohammadi A , Mohammed S , Moradi-Lakeh M , Nagel G , Nand D , Le Nguyen Q , Nolte S , Ogbo FA , Oladimeji KE , Oren E , Pa M , Park EK , Pereira DM , Plass D , Qorbani M , Radfar A , Rafay A , Rahman M , Rana SM , Soreide K , Satpathy M , Sawhney M , Sepanlou SG , Shaikh MA , She J , Shiue I , Shore HR , Shrime MG , So S , Soneji S , Stathopoulou V , Stroumpoulis K , Sufiyan MB , Sykes BL , Tabares-Seisdedos R , Tadese F , Tedla BA , Tessema GA , Thakur JS , Tran BX , Ukwaja KN , Uzochukwu BS , Vlassov VV , Weiderpass E , Wubshet Terefe M , Yebyo HG , Yimam HH , Yonemoto N , Younis MZ , Yu C , Zaidi Z , Zaki ME , Zenebe ZM , Murray CJ , Naghavi M . JAMA Oncol 2016 3 (4) 524-548 Importance: Cancer is the second leading cause of death worldwide. Current estimates on the burden of cancer are needed for cancer control planning. Objective: To estimate mortality, incidence, years lived with disability (YLDs), years of life lost (YLLs), and disability-adjusted life-years (DALYs) for 32 cancers in 195 countries and territories from 1990 to 2015. Evidence Review: Cancer mortality was estimated using vital registration system data, cancer registry incidence data (transformed to mortality estimates using separately estimated mortality to incidence [MI] ratios), and verbal autopsy data. Cancer incidence was calculated by dividing mortality estimates through the modeled MI ratios. To calculate cancer prevalence, MI ratios were used to model survival. To calculate YLDs, prevalence estimates were multiplied by disability weights. The YLLs were estimated by multiplying age-specific cancer deaths by the reference life expectancy. DALYs were estimated as the sum of YLDs and YLLs. A sociodemographic index (SDI) was created for each location based on income per capita, educational attainment, and fertility. Countries were categorized by SDI quintiles to summarize results. Findings: In 2015, there were 17.5 million cancer cases worldwide and 8.7 million deaths. Between 2005 and 2015, cancer cases increased by 33%, with population aging contributing 16%, population growth 13%, and changes in age-specific rates contributing 4%. For men, the most common cancer globally was prostate cancer (1.6 million cases). Tracheal, bronchus, and lung cancer was the leading cause of cancer deaths and DALYs in men (1.2 million deaths and 25.9 million DALYs). For women, the most common cancer was breast cancer (2.4 million cases). Breast cancer was also the leading cause of cancer deaths and DALYs for women (523000 deaths and 15.1 million DALYs). Overall, cancer caused 208.3 million DALYs worldwide in 2015 for both sexes combined. Between 2005 and 2015, age-standardized incidence rates for all cancers combined increased in 174 of 195 countries or territories. Age-standardized death rates (ASDRs) for all cancers combined decreased within that timeframe in 140 of 195 countries or territories. Countries with an increase in the ASDR due to all cancers were largely located on the African continent. Of all cancers, deaths between 2005 and 2015 decreased significantly for Hodgkin lymphoma (-6.1% [95% uncertainty interval (UI), -10.6% to -1.3%]). The number of deaths also decreased for esophageal cancer, stomach cancer, and chronic myeloid leukemia, although these results were not statistically significant. Conclusion and Relevance: As part of the epidemiological transition, cancer incidence is expected to increase in the future, further straining limited health care resources. Appropriate allocation of resources for cancer prevention, early diagnosis, and curative and palliative care requires detailed knowledge of the local burden of cancer. The GBD 2015 study results demonstrate that progress is possible in the war against cancer. However, the major findings also highlight an unmet need for cancer prevention efforts, including tobacco control, vaccination, and the promotion of physical activity and a healthy diet. |
| Comparison between active (pumped) and passive (diffusive) sampling methods for formaldehyde in pathology and histology laboratories
Lee Eun Gyung , Magrm Rana , Kusti Mohannad , Kashon Michael L , Guffey Steven , Costas Michelle M , Boykin Carie J , Harper Martin . J Occup Environ Hyg 2016 14 (1) 31-39. This study was to determine occupational exposures to formaldehyde and to compare concentrations of formaldehyde obtained by active and passive sampling methods. In one pathology and one histology laboratories, exposure measurements were collected with sets of active air samplers (Supelco LpDNPH tubes) and passive badges (ChemDisk Aldehyde Monitor 571). Sixty-six sample pairs (49 personal and 17 area) were collected and analyzed by NIOSH NMAM 2016 for active samples and OSHA Method 1007 (using the manufacturer's updated uptake rate) for passive samples. All active and passive 8-hour time-weighted average (TWA) measurements showed compliance with the OSHA permissible exposure limit (PEL-0.75 ppm) except for one passive measurement, whereas 78% for the active and 88% for the passive samples exceeded the NIOSH recommended exposure limit (REL-0.016 ppm). Overall, 73% of the passive samples showed higher concentrations than the active samples and a statistical test indicated disagreement between two methods for all data and for data without outliers. The OSHA Method cautions that passive samplers should not be used for sampling situations involving formalin solutions because of low concentration estimates in the presence of reaction products of formaldehyde and methanol (a formalin additive). However, this situation was not observed, perhaps because the formalin solutions used in these laboratories included much less methanol (3%) than those tested in the OSHA Method (up to 15%). The passive samplers in general overestimated concentrations compared to the active method, which is prudent for demonstrating compliance with an occupational exposure limit, but occasional large differences may be a result of collecting aerosolized droplets or splashes on the face of the samplers. In the situations examined in this study the passive sampler generally produces higher results than the active sampler so that a body of results from passive samplers demonstrating compliance with the OSHA PEL would be a valid conclusion. However, individual passive samples can show lower results than a paired active sampler so that a single result should be treated with caution. |
| Possible role of fish and frogs as paratenic hosts of Dracunculus medinensis, Chad
Eberhard ML , Yabsley MJ , Zirimwabagabo H , Bishop H , Cleveland CA , Maerz JC , Bringolf R , Ruiz-Tiben E . Emerg Infect Dis 2016 22 (8) 1428-30 Copepods infected with Dracunculus medinensis larvae collected from infected dogs in Chad were fed to 2 species of fish and tadpoles. Although they readily ingested copepods, neither species of fish, Nile tilapia (Oreochromis niloticus) nor fathead minnow (Pimephalis promelas), were found to harbor Dracunculus larvae when examined 2-3 weeks later. Tadpoles ingested copepods much more slowly; however, upon examination at the same time interval, tadpoles of green frogs (Lithobates [Rana] clamitans) were found to harbor small numbers of Dracunculus larvae. Two ferrets (Mustela putorius furo) were fed fish or tadpoles that had been exposed to infected copepods. Only the ferret fed tadpoles harbored developing Dracunculus larvae at necropsy 70-80 days postexposure. These observations confirm that D. medinensis, like other species in the genus Dracunculus, can readily survive and remain infective in potential paratenic hosts, especially tadpoles. |
| The global burden of viral hepatitis from 1990 to 2013: findings from the Global Burden of Disease Study 2013
Stanaway JD , Flaxman AD , Naghavi M , Fitzmaurice C , Vos T , Abubakar I , Abu-Raddad LJ , Assadi R , Bhala N , Cowie B , Forouzanfour MH , Groeger J , Hanafiah KM , Jacobsen KH , James SL , MacLachlan J , Malekzadeh R , Martin NK , Mokdad AA , Mokdad AH , Murray CJ , Plass D , Rana S , Rein DB , Richardus JH , Sanabria J , Saylan M , Shahraz S , So S , Vlassov VV , Weiderpass E , Wiersma ST , Younis M , Yu C , El Sayed Zaki M , Cooke GS . Lancet 2016 388 (10049) 1081-1088 BACKGROUND: With recent improvements in vaccines and treatments against viral hepatitis, an improved understanding of the burden of viral hepatitis is needed to inform global intervention strategies. We used data from the Global Burden of Disease (GBD) Study to estimate morbidity and mortality for acute viral hepatitis, and for cirrhosis and liver cancer caused by viral hepatitis, by age, sex, and country from 1990 to 2013. METHODS: We estimated mortality using natural history models for acute hepatitis infections and GBD's cause-of-death ensemble model for cirrhosis and liver cancer. We used meta-regression to estimate total cirrhosis and total liver cancer prevalence, as well as the proportion of cirrhosis and liver cancer attributable to each cause. We then estimated cause-specific prevalence as the product of the total prevalence and the proportion attributable to a specific cause. Disability-adjusted life-years (DALYs) were calculated as the sum of years of life lost (YLLs) and years lived with disability (YLDs). FINDINGS: Between 1990 and 2013, global viral hepatitis deaths increased from 0.89 million (95% uncertainty interval [UI] 0.86-0.94) to 1.45 million (1.38-1.54); YLLs from 31.0 million (29.6-32.6) to 41.6 million (39.1-44.7); YLDs from 0.65 million (0.45-0.89) to 0.87 million (0.61-1.18); and DALYs from 31.7 million (30.2-33.3) to 42.5 million (39.9-45.6). In 2013, viral hepatitis was the seventh (95% UI seventh to eighth) leading cause of death worldwide, compared with tenth (tenth to 12th) in 1990. INTERPRETATION: Viral hepatitis is a leading cause of death and disability worldwide. Unlike most communicable diseases, the absolute burden and relative rank of viral hepatitis increased between 1990 and 2013. The enormous health loss attributable to viral hepatitis, and the availability of effective vaccines and treatments, suggests an important opportunity to improve public health. FUNDING: Bill & Melinda Gates Foundation. |
| Donor-derived Strongyloides stercoralis infection in solid organ transplant recipients in the United States, 2009-2013
Abanyie FA , Gray EB , Delli Carpini KW , Yanofsky A , McAuliffe I , Rana M , Chin-Hong PV , Barone CN , Davis JL , Montgomery SP , Huprikar S . Am J Transplant 2015 15 (5) 1369-75 Infection with Strongyloides stercoralis is typically asymptomatic in immunocompetent hosts, despite chronic infection. In contrast, immunocompromised hosts such as solid organ transplant recipients are at risk for hyperinfection syndrome and/or disseminated disease, frequently resulting in fatal outcomes. Infection in these recipients may result from reactivation of latent infection or infection through transmission from an infected donor. We describe the Centers for Disease Control and Prevention's experience with seven clusters of donor-derived infection from 2009 to 2013. Six of the seven (86%) donors were born in Latin America; donor screening was not performed prior to organ transplantation in any of these investigations. Eleven of the 20 (55%) organ recipients were symptomatic, two of whom died from complications of strongyloidiasis. We also describe the New York Organ Donor Network (NYODN) experience with targeted donor screening from 2010 to 2013. Of the 233 consented potential donors tested, 10 tested positive for Strongyloides antibody; and 18 organs were transplanted. The majority (86%) of the donors were born in Central or South America. Fourteen recipients received prophylaxis after transplantation; no recipients developed strongyloidiasis. The NYODN experience provides evidence that when targeted donor screening is performed prior to transplantation, donor-derived infection can be averted in recipients. |
| Switch from oral to inactivated poliovirus vaccine in Yogyakarta Province, Indonesia: summary of coverage, immunity, and environmental surveillance.
Wahjuhono G , Revolusiana , Widhiastuti D , Sundoro J , Mardani T , Ratih WU , Sutomo R , Safitri I , Sampurno OD , Rana B , Roivainen M , Kahn AL , Mach O , Pallansch MA , Sutter RW . J Infect Dis 2014 210 Suppl 1 S347-52
BACKGROUND: Inactivated poliovirus vaccine (IPV) is rarely used in tropical developing countries. To generate additional scientific information, especially on the possible emergence of vaccine-derived polioviruses (VDPVs) in an IPV-only environment, we initiated an IPV introduction project in Yogyakarta, an Indonesian province. In this report, we present the coverage, immunity, and VDPV surveillance results. METHODS: In Yogyakarta, we established environmental surveillance starting in 2004; and conducted routine immunization coverage and seroprevalence surveys before and after a September 2007 switch from oral poliovirus vaccine (OPV) to IPV, using standard coverage and serosurvey methods. Rates and types of polioviruses found in sewage samples were analyzed, and all poliovirus isolates after the switch were sequenced. RESULTS: Vaccination coverage (>95%) and immunity (approximately 100%) did not change substantially before and after the IPV switch. No VDPVs were detected. Before the switch, 58% of environmental samples contained Sabin poliovirus; starting 6 weeks after the switch, Sabin polioviruses were rarely isolated, and if they were, genetic sequencing suggested recent introductions. CONCLUSIONS: This project demonstrated that under almost ideal conditions (good hygiene, maintenance of universally high IPV coverage, and corresponding high immunity against polioviruses), no emergence and circulation of VDPV could be detected in a tropical developing country setting. |
| Molecular epidemiology of influenza A(H1N1)pdm09 viruses from Pakistan in 2009-2010.
Bashir Aamir U , Badar N , Mehmood MR , Nisar N , Suleman RM , Shaukat S , Sharif S , Kamran J , Zaidi SS , Kazi BM , Gubareva L , Xu X , Garten R , Klimov A . PLoS One 2012 7 (8) e41866
BACKGROUND: In early 2009, a novel influenza A(H1N1) virus that emerged in Mexico and United States rapidly disseminated worldwide. The spread of this virus caused considerable morbidity with over 18,000 recorded deaths. The new virus was found to be a reassortant containing gene segments from human, avian and swine influenza viruses. METHODS/RESULTS: The first case of human infection with A(H1N1)pdm09 in Pakistan was detected on 18(th) June 2009. Since then, 262 laboratory-confirmed cases have been detected during various outbreaks with 29 deaths (as of 31(st) August 2010). The peak of the epidemic was observed in December with over 51% of total respiratory cases positive for influenza. Representative isolates from Pakistan viruses were sequenced and analyzed antigenically. Sequence analysis of genes coding for surface glycoproteins HA and NA showed high degree of high levels of sequence identity with corresponding genes of regional viruses circulating South East Asia. All tested viruses were sensitive to Oseltamivir in the Neuraminidase Inhibition assays. CONCLUSIONS: Influenza A(H1N1)pdm09 viruses from Pakistan form a homogenous group of viruses. Their HA genes belong to clade 7 and show antigenic profile similar to the vaccine strain A/California/07/2009. These isolates do not show any amino acid changes indicative of high pathogenicity and virulence. It is imperative to continue monitoring of these viruses for identification of potential variants of high virulence or drug resistance. |
| Nerve agent exposure elicits site-specific changes in protein phosphorylation in mouse brain
Zhu H , O'Brien JJ , O'Callaghan JP , Miller DB , Zhang Q , Rana M , Tsui T , Peng Y , Tomesch J , Hendrick JP , Wennogle LP , Snyder GL . Brain Res 2010 1342 11-23 Organophosphorus (OP) compounds cause toxic symptoms, including convulsions, coma, and death, as the result of irreversible inhibition of acetylcholinesterase (AChE). The development of effective treatments to block these effects and attenuate long-term cognitive and motor disabilities that result from OP intoxication is hampered by a limited understanding of the CNS pathways responsible for these actions. We employed a candidate method (called CNSProfile) to identify changes in the phosphorylation state of key neuronal phosphoproteins evoked by the OP compound, diisopropyl fluorophosphate (DFP). Focused microwave fixation was used to preserve the phosphorylation state of phosphoproteins in brains of DFP-treated mice; hippocampus and striatum were analyzed by immunoblotting with a panel of phospho-specific antibodies. DFP exposure elicited comparable effects on phosphorylation of brain phosphoproteins in both C57BL/6 and FVB mice. DFP treatment significantly altered phosphorylation at regulatory residues on glutamate receptors, including Serine897 (S897) of the NR1 NMDA receptor. NR1 phosphorylation was bi-directionally regulated after DFP in striatum versus hippocampus. NR1 phosphorylation was reduced in striatum, but elevated in hippocampus, compared with controls. DARPP-32 phosphorylation in striatum was selectively increased at the Cdk5 kinase substrate, Threonine75 (T75). Phencynonate hydrochloride, a muscarinic cholinergic antagonist, prevented seizure-like behaviors and the observed changes in phosphorylation induced by DFP. The data reveal region-specific effects of nerve agent exposure on intracellular signaling pathways that correlate with seizure-like behavior and which are reversed by the muscarinic receptor blockade. This approach identifies specific targets for nerve agents, including substrates for Cdk5 kinase, which may be the basis for new anti-convulsant therapies. |
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