Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: SARS-CoV-2 antibody prevalence in Sierra Leone, March 2021: a cross-sectional, nationally representative, age-stratified serosurvey
Detection and quantification of enteric pathogens in aerosols near uncontained fecal waste streams in cities with poor sanitation
Molecular typing of breast cancer in Northern Henan Province
Identification of a novel proteomic Biomarker in Parkinson's Disease: Discovery and Replication in Blood, brain and CSF
Analysis of Y Chromosome Haplogroups in Parkinson's Disease
The burden of isolation to the individual: a comparison between isolation for COVID-19 and for other influenza-like illnesses in Japan
Effect of kettlebell training on bone mineral density in two older adults with osteoporosis: a multiple-case study from the BELL trial
Genomic reconstruction of the SARS-CoV-2 epidemic in England
Psychosis spectrum symptoms among individuals with schizophrenia-associated copy number variants and evidence of cerebellar correlates of symptom severity
Fundamental limitations of case isolation
Impact of COVID-19 non-pharmaceutical interventions on pneumococcal carriage prevalence and density in Vietnam
Determinants of hospital outcomes for COVID-19 infections in a large Pennsylvania Health System
EVIDENCE FOR BIOLOGICAL AGE ACCELERATION AND TELOMERE2 SHORTENING IN COVID-19 SURVIVORS
A proteomic survival predictor for COVID-19 patients in intensive care
C-reactive protein and lactate dehydrogenase as prognostic indicators in COVID-2019 outpatients
Developing and Testing an Arts-Based, Digital Knowledge Translation Tool for Parents about Childhood Croup
Reports of myocarditis and pericarditis following mRNA COVID-19 vaccines: A review of spontaneously reported data from the UK, Europe, and the US
HOXA Amplification Defines a Genetically Distinct Subset of Angiosarcomas
Impact of January 2021 curfew measures on SARS-CoV-2 B.1.1.7 circulation in France
Postlockdown Dynamics of COVID-19 in New York, Florida, Arizona, and Wisconsin
"We just considered it  to be over there" : A qualitative study exploring urban perspectives for disease introduction
COVID-19 vaccination in Sindh Province, Pakistan: a modelling study of health impact and cost-effectiveness
SARS-CoV-2 variant of concern B.1.1.7: diagnostic accuracy of three antigen-detecting rapid tests
Syndromic surveillance for severe acute respiratory infections (SARI) enables valid estimation of COVID-19 hospitalization incidence and reveals underreporting of hospitalizations during pandemic peaks of three COVID-19 waves in Germany, 2020-2021
Assessing knowledge, concerns, and risk perceptions among Italian medical students during the SARS-CoV-2 pandemic.
Medical students' crisis-induced stress and the association with social support