Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Enhancing Food Security for Families Vulnerable to COVID-19
Equivalency of Protection from Natural Immunity in COVID-19 Recovered Versus Fully Vaccinated Persons: A Systematic Review and Pooled Analysis
Global-scale analysis and longitudinal assessment of COVID-19 incidence in the first six months
Will the Large-scale Vaccination Succeed in Containing the COVID-19 Epidemic and How Soon?
EXAMINING THE DOUBLE BURDEN OF MALNUTRITION FOR PRESCHOOL CHILDREN AND WOMEN OF REPRODUCTIVE AGE IN LOW- AND MIDDLE-INCOME COUNTRIES: A SCOPING REVIEW PROTOCOL
Clinical observation of high-flow nasal cannula with non-rebreather mask use on severe or critically ill COVID-19 diabetic patients
Increased Long-Term Mortality in Patients Admitted to the Intensive Care Unit with Health-Care Associated Pneumonia
Real-world serologic responses to Extended-interval and Heterologous COVID-19 mRNA vaccination in Frail Elderly - Interim report from a prospective observational cohort study
A Hybrid Machine Learning Framework for Enhancing the Prediction Power in Large Scale Population Studies: The ATHLOS Project
Regulatory T-cells are central hubs for age-, sex- and severity-associated cellular networks during COVID-19
Thromboembolism risk among patients with diabetes/stress hyperglycemia and COVID-19
Saliva Is Comparable to Nasopharyngeal Swabs for Molecular Detection of SARS-CoV-2
Hand Hygiene Products and Adverse Skin Reactions: A Comparison between Health Care and Non-Health Care Workers
D-cycloserine modulates breathlessness related brain activity over pulmonary rehabilitation
Development and Content Validation of the Symptoms Evolution of COVID-19: A Patient-Reported Electronic Daily Diary in Clinical and Real-World Studies
Thailand effective coverage of diabetes and hypertension: challenges and solutions
Impact of the COVID-19 Pandemic on Early Child Cognitive Development: Initial Findings in a Longitudinal Observational Study of Child Health
Empirical Calibration of a Simulation Model of Opioid Use Disorder
Joint analysis reveals shared autoimmune disease associations and identifies common mechanisms
Subtle oromotor signs in early Parkinsons disease before clinical manifestations of dysphagia
Regional pleural strain measurements during mechanical ventilation using ultrasound elastography: A randomised, crossover, proof of concept physiologic study
Risk of death following SARS-CoV-2 infection or COVID-19 vaccination in young people in England: a self-controlled case series study
The prevalence of adaptive immunity to COVID-19 and reinfection after recovery, a comprehensive systematic review and meta-analysis of 12 011 447 individuals
Resolution limit-free community detection reveals unique patterns of resting-state network connectivity in posttraumatic stress disorder: A PGC-ENIGMA PTSD Consortium investigation
Why promising drugs are shelved and barriers and facilitators to re-purposing them: A systematic literature review
Ten months of temporal variation in the clinical journey of hospitalised patients with COVID-19: an observational cohort