Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Depression during the COVID-19 pandemic amongst residents of homeless shelters in France.
Vaccine effectiveness of the BNT162b2 mRNA COVID-19 vaccine against RT-PCR confirmed SARS-CoV-2 infections, hospitalisations and mortality in prioritised risk groups
Axillary microbiota is associated with cognitive impairment in Parkinson's disease patients
SARS-CoV-2 transmission potential and rural-urban disease burden disparities across Alabama, Louisiana, and Mississippi, March 2020 -- May 2021
Visual Impairment and Risk of Dementia: the UK Biobank Study
Improving Polygenic Prediction in Ancestrally Diverse Populations
A systematic review of Hepatitis B virus (HBV) prevalence and genotypes in Kenya: Data to inform clinical care and health policy
The Report on China-Spain Joint Clinical Testing for Rapid COVID-19 Risk Screening by Eye-region Manifestations
Change in Plasma Alpha-Tocopherol Associations with Attenuated Pulmonary Function Decline and with CYP4F2 Missense Variation
Descriptive Epidemiological Assessment of the Relationship between the Global Burden of Influenza from 2017-2019 and COVID-19
Combining Navigator and Optical Prospective Motion Correction for High-Quality 500 μm Resolution Quantitative Multi-Parameter Mapping at 7T
A Cross-Sectional Analysis of Oral Health Spending Over the Lifespan in Commercial and Medicaid Insured Populations
Why is non-suicidal self-injury more prevalent among women? Mediation and moderation analyses of psychological distress, emotion dysregulation, and impulsivity
African-Ancestry Associated Gene Expression Signatures and Pathways in Triple Negative Breast Cancer, a Comparison Across Women of African Descent
First genotype-phenotype study in TBX4 syndrome: gain-of-function mutations causative for lung disease
mRNA Vaccine Effectiveness against COVID-19 among Symptomatic Outpatients Aged >=16 Years in the United States, February to May 2021
Comparison of children and young people admitted with SARS-CoV-2 across the UK in the first and second pandemic waves: prospective multicentre observational cohort study
Controlling multiple COVID-19 epidemic waves: an insight from a multi-scale model linking the behavior change dynamics to the disease transmission dynamics
Stairway visual contrast enhancement to reduce fall-related events
Use of Convalescent Plasma Therapy among Hospitalized Coronavirus Disease 2019 (COVID-19) Patients: A Single-Center Experience
Equity Impacts of Dollar Store Vaccine Distribution
Perceived Stress Among Faculty and First Year Students at a College of Pharmacy
Higher polygenic risk for melanoma is associated with improved survival
Cigarette Smoking-Associated Isoform Switching and 3-prime UTR Lengthening Via Alternative Polyadenylation
MIRS: an AI scoring system for predicting the prognosis and therapy of breast cancer
An effect of the COVID-19 pandemic: significantly more complicated appendicitis due to delayed presentation of patients!