Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Evaluating binary classifiers: extending the Efficiency Index
Neurology in a Changing Climate: A Scoping Review
Short Telomeres and a T-Cell Shortfall in COVID-19: The Aging Effect
Selective tweeting of COVID-19 articles: Does title or abstract positivity influence dissemination?
SARS-CoV-2 Acquisition and Immune Pathogenesis Among School-Aged Learners in Four Diverse Schools
Delays during PBMC isolation have a moderate effect on yield, but severly compromise cell viability
Disparate Impacts on Online Information Access during the COVID-19 Pandemic
Real-time optical analysis of a colorimetric LAMP assay for SARS-CoV-2 in saliva with a handheld instrument improves accuracy compared to endpoint assessment
Untargeted lipidomics of non-small cell lung carcinoma shows differentially abundant lipid classes in cancer vs non-cancer tissue
Estimating event ban effects on COVID-19 outbreak in Japan
Estimation of the Reproduction Number for COVID-19 Based on Latest Vaccination Results and the Timing for Herd-Immunity: Prospect for 2021
Hospitalization Data Supports Correlation of Lower Covid-19 Severity vs. Universal BCG Immunization in the Early Phase of the Pandemic
Cross-border transmissions of delta substrain AY.29 during Olympic and Paralympic Games
Age and body mass index affect fit of spirometry GLI references in schoolchildren
Somatic mutations in both blood cells and vascular endothelium from patients with severe coronary artery diseases
Cardiorespiratory Fitness and Neuromuscular Performance in Patients Recovered from COVID-19
epiLiver a novel tumor specific, high throughput and cost-effective blood test for specific detection of liver cancer (HCC)
An increase in willingness to vaccinate against COVID-19 in the US: longitudinal evidence from the Understanding America Study
Evidence for Influenza and RSV interaction from 10 years of enhanced surveillance in Nha Trang, Vietnam, a modelling study.
The Economic Costs of Child Maltreatment in UK
An experimental feasibility study evaluating the adequacy of sportswear-type wearables for recording physical exercise intensity
Endemic Seasonal Coronavirus Neutralisation and COVID-19 severity
Parental perspectives on the grief and support needs of children and young people bereaved during the Covid-19 pandemic: Qualitative findings from a national survey
Re-emergence of respiratory syncytial virus following the COVID-19 pandemic in the United States: a modeling study
Estimating the incidence and key risk factors of cardiovascular disease in patients at high risk of imminent fracture using routinely collected real-world data from the UK
Development and Evaluation of a new Swiss Made SARS-CoV-2 antigen-detecting rapid test