Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Sustained SARS-CoV-2 seroprevalence and related hematological features in asymptomatic blood donors
Clinical validation of RCSMS: a rapid and sensitive CRISPR-Cas12a test for the molecular detection of SARS-CoV-2 from saliva
Modeling impact and cost-effectiveness of gene drives for malaria elimination in the Democratic Republic of the Congo
Malaria treatment-seeking behaviour and its associated factors: A cross-sectional study in rural East Nusa Tenggara Province, Indonesia
Genetic analyses on the health impacts of testosterone highlight effects on female-specific diseases and sex differences
Long-lasting effects of insufficient sleep on neurocognitive development in early adolescence
Non-Alcoholic Fatty Liver Disease (NAFLD) in Children and Adolescents taking Atypical Antipsychotic Medications : A Protocol for a Systematic Review and Meta-Analysis
Immunogenicity of a third scheduled dose of rotavirus vaccine in Australian Indigenous infants to improve protection against gastroenteritis: a phase IV, double-blind, randomised, placebo-controlled clinical trial
Mobility network reveals the impact of geographic vaccination heterogeneity on COVID-19
SARS-CoV-2 Antibody Response in Patients Undergoing Kidney Transplantation
Neurophysiological and brain structural markers of cognitive frailty differs from Alzheimer's disease
The potential for bike riding across entire cities: quantifying spatial variation in interest in bike riding
White blood cells and severe COVID-19: a Mendelian randomization study
Impact of multiple sclerosis disease-modifying therapies on SARS-CoV-2 vaccine-induced antibody and T cell immunity
Development of machine learning models for the prediction of complications after colonic, colorectal and small intestine anastomosis in psychiatric and non-psychiatric patient collectives (PSTUDY)
Effect of Umbilical Cord Milking on Severity of Hypoxic Ischemic Encephalopathy in Asphyxiated Neonates A Pilot study
State-dependent patterns and coupling between the vaccination schedule, population mobility and the COVID epidemic outline, in the US states
Effect of Tocilizumab on ventilator free days composite outcome in SARS-CoV-2 patients. A retrospective competing risk analysis.
Gastric dysfunction in patients with chronic nausea and vomiting syndromes defined by a novel non-invasive gastric mapping device
Indirect impacts of the COVID-19 pandemic at two tertiary neonatal units in Zimbabwe and Malawi: an interrupted time series analysis
"We just considered it  to be over there" : A qualitative study exploring urban perspectives for disease introduction
The effects of physical distancing and lockdown to restrain SARS-CoV-2 outbreak in the Italian Municipality of Cogne
COVID-19 vaccine willingness and cannabis use histories
SARS-Cov-2 testing in the United Arab Emirates: Population Attitudes and Beliefs.
Incidences of poor-quality pharmaceutical products in Nepal
The effects of time-restricted eating vs. standard dietary advice on weight, metabolic health and the consumption of processed food: A pragmatic randomised controlled trial in community-based adults