Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Two Stage Hierarchical Group Testing Strategy to Increase SARS-CoV-2 Testing Capacity at an Institution of Higher Education: A Retrospective Analysis
A new SARS-CoV-2 variant poorly detected by RT-PCR on nasopharyngeal samples, with high lethality
Seroepidemiological Study of Novel Corona Virus (CoVID-19) in Tehran, Iran
Computing a Lower Bound for the Total Size of the COVID-19 Infected Population Iceberg Using the General Age-Group Distribution
Comparison of immunogenicity and safety of inactivated, adenovirus-vectored and heterologous adenovirus-vectored/mRNA vaccines in patients with systemic lupus erythematosus and rheumatoid arthritis: a prospective cohort study
Effectiveness of COVID-19 vaccines against hospitalization and death in Canada: A multiprovincial test-negative design study
Burden of Depressive and Anxiety Disorders in Nepal, 1990-2017: An Analysis of Global Burden of Disease Data
COVID-19 infection and hospitalization according to the burden of chronic noncommunicable diseases in Brazil
The main factors influencing COVID-19 spread and deaths in Mexico: A comparison between Phases I and II
Population-split-based risk assessment model of venous thromboembolism in Chinese medical inpatients
SARS-CoV-2 variant dynamics across US states show consistent differences in effective reproduction numbers
Alpha-1 blockers and susceptibility to COVID-19 in benign prostate hyperplasia patients : an international cohort study
Antiretroviral therapy associated lipodystrophy; learning from the past.
Detailed Clinical and Functional Studies of New MTOR Variants in Smith-Kingsmore Syndrome Reveal Deficits of Circadian and Sleep Homeostasis
Health and Economic Consequences of Universal Paid Sick Leave Policies During the COVID-19 Pandemic
Outcomes following out-of-hours cholecystectomy: A systematic review and meta-analysis
NHS CHECK: protocol for a cohort study investigating the psychosocial impact of the COVID-19 pandemic on healthcare workers
Deep Learning for Alzheimer's Disease Drug Repurposing using Knowledge Graph and Multi-level Evidence
Islamic Perspective on Nursing and the Philosophy of Science
Immune profiling demonstrates a common immune signature of delayed acquired immunodeficiency in patients with various etiologies of severe injury
Safety and feasibility of research lumbar puncture in Huntington's disease: the HDClarity cohort and bioresource
COVID-19 & Mental Health: Impact on Working people and Students
Spike in asthma healthcare presentations in eastern England during June 2021: a retrospective observational study using syndromic surveillance data
A Platform for Data-centric, Continuous Epidemiological Analyses
Synchrony-Division Neural Multiplexing: An Encoding Model
Risk of ESKD in related older living kidney donors