Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Effectiveness of mRNA COVID-19 vaccines against symptomatic SARS-CoV-2 infections during the Delta variant epidemic in Japan: Vaccine Effectiveness Real-time Surveillance for SARS-CoV-2 (VERSUS)
Study on the usefulness of Direct Saliva sample Collection (DiSC) by polyester swab
Experimental investigation to verify if excessive plastic sheeting shielding produce micro clusters of SARS-CoV-2
Identifying Dietary Consumption Patterns from Survey Data: a Bayesian Nonparametric Latent Class Model
Impact of COVID-19 Pandemic on Utilization of Facility-Based Essential Maternal and Child Health Services in North Shewa Zone, Ethiopia
AI-Driven Longitudinal Characterization of Neonatal Health and Morbidity
Cerebral hypoperfusion is a late pathological event in the course of Alzheimer's disease
Predicting Managers' Mental Health Across Countries Using Country-Level COVID-19 Statistics
Livestock, pathogens, vectors, and their environment: a causal inference-based approach to estimating the pathway-specific effect of livestock on human African trypanosomiasis risk
Association between central blood pressure, arterial stiffness and low cognitive scores in South African adults
EPIDEMIOLOGICAL CHARACTERISTICS AND SEVERITY OF OMICRON VARIANT CASES IN THE APHP CRITICAL CARE UNITS; THE APHP REALITY RESEARCH GROUP
A deep learning based graph-transformer for whole slide image classification
Multi-method investigation of factors influencing amyloid onset and impairment in three cohorts
Mapping the human genetic architecture of COVID-19 by worldwide meta-analysis
Cost effective sequencing enables longitudinal profiling of clonal hematopoiesis
Excess mortality associated with the COVID-19 pandemic among Californians 18-65 years of age, by occupational sector and occupation: March through October 2020
Mild cognitive impairment is not a valid concept and should be replaced by a more restrictive, biologically validated class, named Mild Cognitive Dysfunctions (MCD): a nomothetic network approach.
Lessons Learned From the Implementation of a Participant-Collected, Mail-Based SARS-CoV-2 Serological Survey in Massachusetts, USA
Genetic overlap between mood instability and alcohol-related phenotypes suggests shared biological underpinnings
Common genetic variation associated with Mendelian disease severity revealed through cryptic phenotype analysis
A unique dexamethasone-dependent gene expression profile in the lungs of COVID-19 patients
Derivation and external validation of clinical prediction rules identifying children at risk of linear growth faltering (stunting) presenting for diarrheal care
Risk assessment for airborne disease transmission by poly-pathogen aerosols
Genomic Surveillance in Japan of AY.29--A New Sub-lineage of SARS-CoV-2 Delta Variant with C5239T and T5514C Mutations
Suicide and self-harm in low- and middle- income countries during the COVID-19 pandemic: A systematic review
Expanding the genotype and phenotype spectrum of SYT1-associated neurodevelopmental disorder