Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Seroprevalence of SARS-CoV-2 Antibodies among vaccinated and non-vaccinated adults in the West Bank: Results of a repeated cross-sectional study
A statistical definition of epidemic waves
Dengue-2 Cosmopolitan genotype detection and emergence in South America.
Nurses Perceptions regarding the antiretroviral therapy services at selected health facilities in Lesotho
Low-field thoracic magnetic stimulation increases peripheral oxygen saturation levels in coronavirus disease (COVID-19) patients: a single-blind, sham-controlled, crossover study
Dramatic Rise of Seroprevalence Rates of SARS-CoV-2 Antibodies among Healthy Blood Donors: The evolution of a Pandemic
Short report: Ethnicity and COVID-19 death in the early part of the COVID-19 second wave in England: an analysis of OpenSAFELY data from 1st September to 9th November 2020
Olfactory detection of human odorant signatures in Covid patients by trained dogs
Transcriptomic Characterization Reveals Blood-based Molecular Signatures of NSCLC Patients in Response to Anti-PD-1 Therapy Combined with Chemotherapy
Longitudinal study of DNA methylation and epigenetic clocks prior to and following test-confirmed COVID-19 and mRNA vaccination
Staffing and Capacity Planning for SARS-CoV-2 Monoclonal Antibody Infusion Facilities: A Performance Estimation Calculator based on Discrete-Event Simulations
Visuospatial neglect: Recovery & Functional outcome after 6 months.
Democratic governance and excess mortality during the COVID-19 pandemic
Predicting Progression Free Survival after Systemic Therapy in Advanced Head and Neck Cancer: Bayesian regression and Model development
Dense phenotyping from electronic health records enables machine-learning-based prediction of preterm birth
An observational study of the association between COVID-19 vaccination rates and participation in a vaccine lottery
New Insight into the Neural Mechanisms of Migraine in Adolescents: Relationships with Sleep
CAREGIVERS' PERSPECTIVE- SATISFACTION WITH HEALTHCARE SERVICES AT THE PAEDIATRIC SPECIALIST CLINIC OF THE NATIONAL REFERRAL CENTRE IN MALAYSIA
Pre-pandemic SARS-CoV-2 serological reactivity in rural malaria-experienced Cambodians
Comprehensive Study of Germline Mutations and Double-Hit Events in Esophageal Squamous Cell Cancer
Modeling and analysis of COVID-19 infected persons during repeated waves in Japan
A cross-sectional study of socioeconomic status and sickness presenteeism in Japanese workers during the COVID-19 pandemic
Estimates of reduced vaccine effectiveness against hospitalization, infection, transmission and symptomatic disease of a new SARS-CoV-2 variant, Omicron (B.1.1.529), using neutralizing antibody titers
Genetic overlap between major depression, bipolar disorder and Alzheimer's Disease
Longitudinal monitoring of SARS-CoV-2-specific immune responses
Analytical and Clinical Validation of an Amplicon-based Next Generation Sequencing Assay for Ultrasensitive Detection of Circulating Tumor DNA