Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Chyawanprash for the prevention of COVID-19 infection among healthcare workers: A Randomized Controlled Trial
Leveraging of SARS-CoV-2 PCR cycle thresholds values (Ct) to forecast COVID-19 trends
Central obesity, smoking habit and hypertension are associated with a blunted serological response to COVID-19 mRNA vaccine
Study protocol for the development and internal validation of SPIRIT (Schizophrenia Prediction of Resistance to Treatment): A clinical tool for predicting risk of treatment resistance to anti-psychotics in First Episode Schizophrenia.
Prioritizing interventions for preventing COVID-19 outbreaks in military basic training
Gut Microbiome Predicts Clinically Important Improvement in Patients with Rheumatoid Arthritis
Knowledge of and Attitudes on Artificial Intelligence in Healthcare: A Provincial Survey Study of Medical Students
An observation and restoration model for the COVID-19 incidence curves
Serological Response to BNT162b2 and ChAdOx1 nCoV-19 Vaccines in Patients with Inflammatory Bowel Disease on Biologic Therapies; A Multi-Center Prospective Study
Effect of COVID-19 vaccination on menstrual periods in a prospectively recruited cohort
Derivation and external validation of clinical prediction rules identifying children at risk of linear growth faltering (stunting) presenting for diarrheal care
Estimation of R0 for the spread of SARS-CoV-2 in Germany from Excess Mortality
Genomic risk prediction for breast cancer in older women
Challenges to self-isolation among contacts of cases of COVID-19: a national telephone survey in Wales
Data analysis of COVID-19 wave peaks in relation to latitude and temperature for multiple nations
Changes in the Health of Adolescent Athletes: A Comparison of Health Measures Collected Before and During the CoVID-19 Pandemic
Expansion of 5' UTR CGG repeat in RILPL1 is associated with oculopharyngodistal myopathy
Electronic Computer-Based Model of Combined Ventilation Using a New Medical Device
Coronavirus-19 and coagulopathy: A Systematic Review
Assessing the impact of SARS-CoV-2 prevention measures in schools by means of agent-based simulations calibrated to cluster tracing data
Investigating direct and indirect genetic effects in attention deficit hyperactivity disorder (ADHD) using parent-offspring trios
Clinical profile and immediate outcome of Multisystem Inflammatory Syndrome in Children (MIS-C) associated with Covid-19: a multicentric study
Does the Data Tell the True Story? A Modelling Study of Early COVID-19 Pandemic Suppression and Mitigation Strategies in Ghana
SARS-CoV-2 transmission potential and rural-urban disease burden disparities across Alabama, Louisiana, and Mississippi, March 2020 -- May 2021
Premature Ventricular Contractions During the Recovery Phase of Exercise Are Only Associated with Increased Cardiovascular Mortality when Present Together with Echocardiographic Abnormalities
Conflicts of interest and physicians' attitudes towards hydroxychloroquine as a treatment against COVID-19: A replication and extension of Roussel & Raoult (2020)