Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Detection of SARS-CoV-2 variants in Switzerland by genomic analysis of wastewater samples
Clinicogenomic analysis of breakthrough infections by SARS CoV2 variants after ChAdOx1 nCoV- 19 vaccination in healthcare workers
Emergence of the Delta Variant and risk of SARS-CoV-2 infection in secondary school students and staff: prospective surveillance in 18 schools, England
The role of HIV infection in the clinical spectrum of COVID-19: a population-based cohort analysis based on US National COVID Cohort Collaborative (N3C) Enclave data
COPD and social distancing in the UK
Bayesian Hierarchical Model for Dose Finding Trial Incorporating Historical Data
The role for 11-oxygenated androgens in HPG-axis disturbances in congenital adrenal hyperplasia due to 21-hydroxylase deficiency
Spike in asthma healthcare presentations in eastern England during June 2021: a retrospective observational study using syndromic surveillance data
Physiological and Psychological Effects of Parental Traditional Thai Massage on Children with Autism: A Protocol for a Randomized Controlled Trial
Mendelian gene identification through mouse embryo viability screening
Evaluating and implementing block jackknife resampling Mendelian randomization to mitigate bias induced by overlapping samples
Predicted long-term impact of COVID-19 pandemic-related care delays on cancer incidence and mortality in Canada
Medical students' perception of live lectures compared to video lectures in basic sciences medical education: a cross-sectional survey of medical colleges in Pakistan
Association between Psychotropic Medications Functionally Inhibiting Acid Sphingomyelinase and reduced risk of Intubation or Death among Individuals with Mental Disorder and Severe COVID-19: an Observational Study
Slower Learning Rates from Negative Outcomes in Substance Use Disorder over a 1-Year Period and their Potential Predictive Utility
Effect of electroMagnetic Interference from smartPHone On cardiac implaNtable Electronic device (EMI-PHONE study)
Evaluation of the Weightage on Pain Management in Pharmacology Curricula of the Undergraduate Medical Program (MBBS) of Bangladesh
A linked mixture model of coronary atherosclerosis
Reopening International Borders without Quarantine: Contact Tracing Integrated Policy against COVID-19
Improving the Diagnosis of SIBO Using an At-Home Handheld App Connected Breath Analysis Device (AIRE)
The effect of eye protection on SARS-CoV-2 transmission: a systematic review
A Methodological Checklist for fMRI Drug Cue Reactivity Studies: Development and Expert Consensus
The equivalence of hydration status measured by the Fresenius BCM and the Cella Bioimpedance Spectroscopy devices on hemodialysis patients
Characterization of SARS CoV-2 Antibodies in Breast Milk from 21 Women with Confirmed COVID-19 Infection
Traditional treatment of HIV and the role of family members as barriers to access to HIV care service or antiretroviral therapy among people living with HIV
Prevalence and Risk Factors of Stroke in Bangladesh: A Nationwide Population-Based Survey