Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Analysis of humoral immunity against emerging SARS-CoV-2 variants: a population-based prevalence study in Yokohama, Japan
The impact of three progressively introduced interventions on second wave daily COVID-19 case numbers in Melbourne, Australia
Is multimorbidity associated with risk of elder abuse? Findings from the AHSETS study
Rapid Lifestyle Prototyping: Assessment of Infrared Spectroscopic Blood Responses for Short-term Lifestyle Interventions
Small nucleolar RNAs in plasma and their discriminatory power as diagnostic biomarkers of Alzheimer's disease
A prospective double-blinded non-selection trial of reproductive outcomes and chromosomal normalcy of newborns derived from putative low/moderate-degree mosaic IVF embryos
Use of real-world evidence data to evaluate the comparative effectiveness of second-line type 2 diabetes medications on chronic kidney disease
Migration of households from New York City and the Second Peak in Covid-19 cases in New Jersey, Connecticut and New York Counties.
Knowledge, attitude, and practice related to the COVID-19 pandemic among undergraduate medical students in Indonesia: a nationwide cross-sectional study
Recalibrating SARS-CoV-2 antigen rapid lateral flow test relative sensitivity from validation studies to absolute sensitivity for detecting individuals with live virus
Examining Recent Trends in the Racial Disparity Gap in Tap Water Consumption: NHANES 2011-2018
Understanding soaring coronavirus cases and the effect of contagion policies in the UK
CalScope: Monitoring SARS-CoV-2 Seroprevalence from Vaccination and Prior Infection in Adults and Children in California May 2021 to July 2021
Acute and long-term impacts of COVID-19 on economic vulnerability: a population-based longitudinal study (COVIDENCE UK)
Computational analysis of quantitative echocardiographic assessments of functional mitral regurgitation: Proximal Isovelocity Surface Area methods
A fourth dose of the mRNA-1273 SARS-CoV-2 vaccine improves serum neutralization against the delta variant in kidney transplant recipients
Quantifying the role of naturally- and vaccine-derived neutralizing antibodies as a correlate of protection against COVID-19 variants
In schizophrenia, the effects of the IL-6/IL-23/Th17 axis on health-related quality of life and disabilities are partly mediated by generalized cognitive decline and the symptomatome.
Revisiting Bias in Odds Ratios
GCH1 mutations in hereditary spastic paraplegia
Development of an electronic frailty index for hospitalized geriatric patients in Sweden
Employer Requirements and COVID-19 Vaccination and Attitudes among Healthcare Personnel in the U.S.: Findings from National Immunization Survey Adult COVID Module, August - September 2021
The presence of SARS-CoV-2 RNA in different freshwater environments in urban settings determined by RT-qPCR: implications for water security
The Biomedical Research Hub: A Federated Platform for Patient Research Data
SETBP1 variants outside the degron disrupt DNA-binding and transcription independent of protein abundance to cause a heterogeneous neurodevelopmental disorder
Assessments of heavy lift UAV quadcopter drone to support COVID 19 vaccine cold chain delivery for indigenous people in remote areasin South East Asia