Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: Re-emergence of COVID-19 in Beijing was triggered by frozen virus: evidence from molecular clock
Chinese medicine (Q-14) in the Treatment of Patients with Coronavirus Disease 2019 (COVID-19): A Single-center, Open label, Randomised Controlled Trial
Environmental factors and mobility predict COVID-19 seasonality
Premature Atrial Stimulation Accentuates Conduction Abnormalities in Cardiac Surgery Patients that Develop Postoperative Atrial Fibrillation
Impaired Humoral and Cellular Immunity after SARS-CoV2 BNT162b2 (Tozinameran) Prime-Boost Vaccination in Kidney Transplant Recipients
Endophenotype Effect Sizes Provide Evidence Supporting Variant Pathogenicity in Monogenic Disease Susceptibility Genes
Identification of a novel proteomic Biomarker in Parkinson's Disease: Discovery and Replication in Blood, brain and CSF
Regulatory T-cells are central hubs for age-, sex- and severity-associated cellular networks during COVID-19
Intra-individual reproducibility as essential determinant of clinical utility of smartphone-based neurological disability tests
Higher education responses to COVID-19 in the United States: Evidence for the impacts of university policy
Wastewater surveillance for infectious disease: a systematic review
Rapid emergence of SARS-CoV-2 Omicron variant is associated with an infection advantage over Delta in vaccinated persons
COVIDStrategyCalculator: A software to assess testing- and quarantine strategies for incoming travelers, contact person management and de-isolation
Social gradients in health vary between rural and urban Turkana
Validating and automating learning of cardiometabolic polygenic risk scores from direct-to-consumer genetic and phenotypic data: implications for scaling precision health research.
COVID-19 Outcomes in Patients with Cancer: Findings from the University of California Health System Database
Social contacts and transmission of COVID-19 in British Columbia, Canada
Effectiveness of Oral Health Education Interventions on Oral Health Literacy Levels in Adults; A Systematic Review
Pre-treatment lactate dehydrogenase levels as predictor of hepatic resection in intermediate stage hepatocellular carcinoma
Caspase-6-cleaved tau is relevant in Alzheimer's disease but not in 4-repeat tauopathies: diagnostic and therapeutic implications
Knowledge and Impact of COVID-19 on Middle-Aged and Older People living with HIV in Lima, Peru
Student nurses' views on shift patterns: what do they prefer and why? Results from a Tweetchat
HormoneBayes: a novel Bayesian framework for the analysis of pulsatile hormone dynamics.
Persistent symptoms among children and adolescents with and without anti-SARS-CoV-2 antibodies: a population-based serological study in Geneva, Switzerland
COVID-19 Prevention Facilitators and Barriers among Specific Ethnic Minority Communities in Rural Ohio
COVID-19 Infection risk posed by drinking alcohol at restaurants or bars in Japan