Instruct: Identify the main category of a medRxiv paper based on its title.
Query: Association between obesity and hospitalization in mild COVID-19 young adult outpatients in Brazil: a prospective cohort study
Use of the Elimination Strategy in Response to the COVID-19 Pandemic: Health and Economic Impacts for New Zealand Relative to Other OECD Countries
Replacement of the Gamma by the Delta variant in Brazil: impact of lineage displacement on the ongoing pandemic
Incorporating family disease history and controlling case-control imbalance for population based genetic association studies
Out-of-Pocket Spending for Health Care Within 90 Days of COVID-19 Hospitalization
The effects of COVID-19 on European healthcare provision for people with major depressive disorder: a scoping review protocol
The impact of retracted randomised controlled trials on systematic reviews and clinical practice guidelines: a meta-epidemiological study
Structural and diffusion weighted brain imaging biomarkers for ADHD and its symptomology in very young (4-7-year-old) children
Are fast test results preferable to high test sensitivity in contact-tracing strategies?
A Third Dose of SARS-CoV-2 Vaccine Increases Neutralizing Antibodies Against Variants of Concern in Solid Organ Transplant Recipients
Mental health assessment of Israeli adolescents before and during the COVID-19 pandemic
Study on the mucosal and serological immune response to the Novel Coronavirus (SARS-CoV-2) vaccine
PENet: Continuous-Valued Pulmonary Edema Severity Prediction On Chest X-ray Using Siamese Convolutional Networks
Conditions for a return to normal under COVID-19 mitigation measures and vaccinations
Are psychiatric disorders risk factors for COVID-19 susceptibility and severity? a two-sample, bidirectional, univariable and multivariable Mendelian Randomization study
Multi-objective Risk-based Resource Allocation for Urban Pandemic Preparedness: The COVID-19 Case in Bogota, Colombia
Trends in medical and surgical admission length of stay by race/ethnicity and socioeconomic status: a time series analysis
Pre-infection 25-hydroxyvitamin D3 levels and association with severity of COVID-19 illness
Association of post-traumatic stress disorder, traumatic brain injury, and related synergistic factors with prodromal Parkinson's Disease: A case-control study of 1.5 million Veterans
Revisiting IgG antibody reactivity to Epstein-Barr virus in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome and its potential application to disease diagnosis
Perceived racial discrimination and eating habits: Systematic review and conceptual models
Vaccine effectiveness of Pfizer-BioNTech and Oxford-AstraZeneca to prevent severe COVID-19 in Costa Rica by September and October 2021: A nationwide, observational study of hospitalisations prevalence.
Post-acute COVID-19 syndrome and its prolonged effects: An updated systematic review
Dense phenotyping from electronic health records enables machine-learning-based prediction of preterm birth
Clinical validation of point-of-care SARS-COV-2 BD Veritor antigen test by a single throat swab for rapid COVID-19 status on hospital patients predominantly without overt COVID symptoms
The anti-SARS-CoV-2 immunoglobulin G levels and neutralising capacities against alpha and delta virus variants of concern achieved after initial immunisation with vector vaccine followed by mRNA vaccine boost are comparable to those after double immunisation with mRNA vaccines