Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: The rich-to-poor vaccine donation game: When will self-interested countries donate their surplus vaccines during pandemics?
Optimizing Social Distancing Policies: A Dynamic Programming Approach for Coupled High and Low Risk Populations
Confirmation of multi-parallel quantitative real-time PCR as the gold standard for detecting soil-transmitted helminths in stool
A distinct four-value blood signature of pyrexia under combination therapy of malignant melanoma with BRAF/MEK-inhibitors evidenced by an algorithm defined pyrexia score
Lead exposure and serum metabolite profiles in pregnant women in Mexico City
Host and microbiome features of secondary infections in lethal covid-19
SARS-CoV-2 seroprevalence in the city of Hyderabad, India in early 2021
Association of E484K and L452R spike protein mutations with SARS-CoV-2 infection in vaccinated persons---Maryland, January - May 2021
Social disparities in unplanned 30-day readmission rates after hospital discharge in patients with chronic health conditions: A retrospective cohort study using patient level hospital administrative data linked to the population census in Switzerland
Relationship Between Patient Sex and Serum Tumor Necrosis Factor Antagonist Drug and Anti-Drug Antibody Concentrations in Inflammatory Bowel Disease; A Nationwide Study
Early Prediction of Hemodynamic Shock in the Intensive Care Units with Deep Learning on Thermal Videos
Characterization of the gene expression profile in younger and older low-grade glioma patients
COVID-19 vaccine acceptance and its socio-demographic and emotional determinants: a multi-country cross-sectional study
SARS-CoV-2-specific Humoral Immune Responses after A Single Dose of Inactivated Whole-virus SARS-CoV-2 Vaccine in Kidney Transplant Recipients: An Initial Report
Evaluation of a new spike (S) protein based commercial immunoassay for the detection of anti-SARS-CoV-2 IgG
Are the Items of the Starkstein Apathy Scale Fit for the Purpose of Measuring Apathy Post-Stroke?
Placental transcription profiling in 6-23 weeks' gestation reveals differential transcript usage in early development
Safety and efficacy of antiviral therapy alone or in combination in COVID-19 - a randomized controlled trial (SEV COVID Trial)
Impact of diabetes mellitus on the stabilization and osseointegration of dental implants: a retrospective study in Greece
EPIDEMIOLOGY OF MAXILLOFACIAL INJURIES IN "HERATSI" numero1 UNIVERSITY HOSPITAL IN YEREVAN, ARMENIA: A RETROSPECTIVE STUDY
Have infection control and prevention measures resulted in any adverse outcomes for care home and domiciliary care residents and staff?
Natural Trajectory of Recovery of COVID-19 Associated Olfactory Loss
Prediction of ADHD diagnosis using brief, low-cost, clinical measures: a competitive model evaluation
Competency for Japanese Novice Medical Laboratory Scientists: A Delphi Method
Comparison of Rapid Antigen Tests' Performance between Delta (B.1.61.7; AY.X) and Omicron (B.1.1.529; BA1) Variants of SARS-CoV-2: Secondary Analysis from a Serial Home Self-Testing Study
Impact of COVID-19 in Individuals with Autism Spectrum Disorders: Analysis of a National Private Claims Insurance Database