Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Syndemic violence victimization, alcohol and drug use, and HIV transmission risk behavior among transgender women in India: A cross-sectional, population-based study
Factors Associated with HIV prevalence among HIV-exposed Infants with HIV DNA Polymerase Chain Reaction Tests in Malawi: 2013-2020
Regulatory T-cells are central hubs for age-, sex- and severity-associated cellular networks during COVID-19
Contact tracing can explain counter-intuitive COVID-19 trajectories, mitigate disease transmission and provide an early warning indicator - a mathematical modeling study
Vaccine breakthrough and the invasion dynamics of SARS-CoV-2 variants
HLA-A*11:01:01:01, HLA*C*12:02:02:01-HLA-B*52:01:02:02, age and sex are associated with severity of Japanese COVID-19 with respiratory failure
Epitope-resolved serology test differentiates the clinical outcome of COVID-19 and identifies defects in antibody response in SARS-CoV-2 variants
Two Distinct Dynamic Process Models of COVID-19 Spread with Divergent Vaccination Outcomes
Prevalence of central obesity and its associated risk factors among adults in Southeast Ethiopia: a community-based cross-sectional study
Evaluation of Clinical Job Demands, Job Resources, and a Novel Intervention on Measures of Health Care Worker Stress at a Community Hospital Pre and Post COVID-19
SARS-CoV-2 R.1 lineage variants prevailed in Tokyo in March 2021
ASSESSING HOME DELIVERY MODEL OPTION FOR IMPROVING ACCESS TO ANTIRETROVIRAL THERAPY; PROTOCOL FOR A CLUSTER- RANDOMIZED TRIAL IN ANAMBRA STATE, NIGERIA.
Performance of Immunoglobulin G Serology on Finger Prick Capillary Dried Blood Spot Samples to Measure SARS-CoV-2 Humoral Immunogenicity
Experience with open schools and preschools in periods of high community transmission of COVID-19 in Norway during the academic year of 2020/2021.
Development and validation of a modified Cambridge Multimorbidity Score for use with internationally recognized electronic health record clinical terms (SNOMED CT)
DNA methylome-wide association study of genetic risk for depression implicates antigen processing and immune responses
Psychometric properties of the Sleep Hygiene Index in a large Italian community sample.
Risk of hospitalization and risk of death for healthcare workers with COVID-19 in nine European Union/European Economic Area countries, January 2020 - January 2021
General anxiety and depression are associated with the physical activity and social interaction levels: Study in Argentinean university students during the COVID-19 outbreak
An optimized reference tissue method for quantification of tau protein depositions in diverse neurodegenerative disorders by PET with 18F-PM-PBB3 (18F-APN-1607)
Prevalence and determinants of persistent symptoms after infection with SARS-CoV-2: Protocol for an observational cohort study (LongCOVID-study)
COVID-19 Disease Severity and Determinants among Ethiopian Patients: A study of the Millennium COVID-19 Care Center
Social-economic drivers overwhelm climate in underlying the COVID-19 early growth rate
Chronic kidney disease is associated with attenuated plasma metabolome response to oral glucose tolerance testing
Altered immunity to microbiota, B cell activation and depleted γδ / resident memory T cells in colorectal cancer
Psychological Outcomes of Surgery Trainees in the Era of COVID-19 at a Tertiary Care Hospital of Karachi, Pakistan: A Cross-Sectional Study