Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Protocol for a nationwide Internet-based health survey in workers during the COVID-19 pandemic in 2020
Role of non-aerosols activities in the transmission of SARS-Cov-2 infection among health care workers.
Did the COVID-19 pandemic result in more family physicians stopping practice? Results from Ontario, Canada
Illness duration and symptom profile in a large cohort of symptomatic UK school-aged children tested for SARS-CoV-2
Clinical observation of high-flow nasal cannula with non-rebreather mask use on severe or critically ill COVID-19 diabetic patients
The impact of depression diagnosis on diabetes and lifetime hyperglycaemia
The role of alternative splicing in CEP290-related disease pathogenesis
Detection of SARS-CoV-2 specific IgA in the human milk of COVID-19 vaccinated, lactating health care workers
Combination of Mifepristone and Methotrexate for the Treatment of Ectopic Pregnancy: A Systematic Review Protocol
SARS-CoV-2 RNA is enriched by orders of magnitude in solid relative to liquid wastewater at publicly owned treatment works
Psychiatric Manifestations and Associated Risk Factors among Hospitalized Patients with COVID-19 in Edo State, Nigeria.
The Impact of Mass Exodus on the Resurgence of COVID19 Cases: Study Case of Regions in Indonesia
COVID Seroprevalence, Symptoms and Mortality During the First Wave of SARS-CoV-2 in Canada
A "Made-in-Canada" serology solution for profiling humoral immune responses to SARS-CoV-2 infection and vaccination
Cost saving in primary versus tertiary level of reproductive health services in Sana'a, Yemen
Modeling transmission dynamics and effectiveness of worker screening programs for SARS-CoV-2 in pork processing plants
MRI versus mammography plus ultrasound in women at intermediate breast cancer risk: study design and protocol of the MRIB multicentre randomized controlled trial
Neutralization of SARS-CoV-2 variants by rVSV-ΔG-spike-elicited human sera
A nationwide deep learning pipeline to predict stroke and COVID-19 death in atrial fibrillation
A Machine Learning Approach to Predict 5-year Risk for Complications in Type 1 Diabetes
The challenge of SARS-CoV-2 environmental monitoring in schools using floors and portable HEPA filtration units: Fresh or relic RNA?
Using a transection paradigm to enhance the repair mechanisms of an investigational human cell therapy
Response to Tozinameran (BNT162b2) booster in twice-vaccinated kidney transplant and maintenance dialysis patients
Immunogenicity and safety of an inactivated SARS-CoV-2 vaccine in people living with HIV-1
Serological Responses to the First Three Doses of SARS-CoV-2 Vaccination in Inflammatory Bowel Disease: A Prospective Cohort Study
COVCOG 2: Cognitive and Memory Deficits in Long COVID: A Second Publication from the COVID and Cognition Study.