Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: Risk factors for developing COVID-19: a population-based longitudinal study (COVIDENCE UK)
A RANDOMIZED TRIAL - INTENSIVE TREATMENT BASED IN IVERMECTIN AND IOTA-CARRAGEENAN AS PRE-EXPOSURE PROPHYLAXIS FOR COVID- 19 IN HEALTHCARE AGENTS
Sex-specific DNA methylation changes in Alzheimer's disease pathology
Estimating typhoid incidence from community-based serosurveys:  A multicohort study in Bangladesh, Nepal, Pakistan and Ghana
SARS-CoV-2 reinfections during the first three major COVID-19 waves in Bulgaria
Olfactory loss is an early and reliable marker for COVID-19
ClinGen CDH1 specifications for the ACMG/AMP guidelines: improvement of germline variant clinical assertions and updated curation guidelines
Prediction of Procedural Pain during Endometrial Biopsy
An observational study of the association between COVID-19 vaccination rates and participation in a vaccine lottery
Is endometriosis metastasizing? Shared somatic alterations suggest common origins across endometriotic lesions
Covid-19 vaccination coverage and break through infections in urban slums of Bengaluru, India: A cross sectional study.
A phase IV, multi-centre, randomized clinical trial comparing two pertussis-containing vaccines in pregnant women in England and vaccine responses in their infants
Genome-wide association studies of 27 accelerometry-derived physical activity measurements identifies novel loci and genetic mechanisms
Use of real-world evidence data to evaluate the comparative effectiveness of second-line type 2 diabetes medications on chronic kidney disease
Source-level EEG and graph theory reveal widespread functional network alterations in focal epilepsy
Maternal depressive symptoms, neonatal white matter, and toddler social-emotional development
Interleukin-6 receptor genetic variation and tocilizumab treatment response to COVID-19
Genomic monitoring unveils a high prevalence of SARS-CoV 2 Omicron Variant in vaccine breakthrough cases in Bahia, Brazil
Modeling Clinical Trial Attrition Using Machine Intelligence: A driver analytics case study using 1,325 trials representing one million patients
Effects of medical school on mental health and sleep habits
School immunization coverage during the COVID-19 pandemic: A retrospective cohort study
The kidney produces a non-polymerizing form of Uromodulin that associates with reduced risk of acute kidney injury
Macronutrient mass intake explains deferential weight and fat loss in isocaloric diets
Viral load dynamics of SARS-CoV-2 Delta and Omicron variants following multiple vaccine doses and previous infection
Precision MRI Phenotyping Enables Detection of Small Changes in Body Composition for Longitudinal Cohorts
Novel Investigation of SARS-CoV-2 in COVID-19 Survivors' Semen in Surabaya, Indonesia