Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Wastewater and surface monitoring to detect COVID-19 in elementary school settings: The Safer at School Early Alert project
Health systems performance for hypertension control using a cascade of care approach in South Africa, 2008-2017
Altered microRNA expression in severe COVID-19: potential prognostic and pathophysiological role
Efficient mucosal antibody response to SARS-CoV-2 vaccination is induced in previously infected individuals
The accuracy of novel antigen rapid diagnostics for SARS-CoV-2: a living systematic review and meta-analysis.
High Burden of COVID-19 among Unvaccinated Law Enforcement Officers and Firefighters
How can we increase notification of exposure to STIs between gay and bisexual men?: intervention development using stakeholder engagement, qualitative methods and behavioural science
High-cited favorable studies for COVID-19 treatments ineffective in large trials
Mental Illness Self-Stigma in Young People: A Scoping Review Protocol
NFL COVID-19 Return to Sport Injury Prevalence Comparison
Image-based computational hemodynamics analysis of systolic obstruction in hypertrophic cardiomyopathy
Learning to Treat Hypotensive Episodes in Sepsis Patients Using a Counterfactual Reasoning Framework
Outcomes following out-of-hours cholecystectomy: A systematic review and meta-analysis
Are vaccines safe in patients with Long COVID? A prospective observational study.
Timeliness of reporting of SARS-CoV-2 seroprevalence results and their utility for infectious disease surveillance
The impact of customized head molds on motion and motion-related artifacts from structural and functional MRI scans in children
Neural Network-derived perfusion maps: a Model-free approach to computed tomography perfusion in patients with acute ischemic stroke
Use of Diagnosis Codes to Find Blood Transfusion Adverse Events in Electronic Health Records
A cross-sectional study of psychosocial factors and sickness presenteeism in Japanese workers during the COVID-19 pandemic
The COVID-19 Infodemic: The complex task of elevating signal and eliminating noise.
No association between the SARS-CoV-2 variants and mortality rates in the Eastern Mediterranean Region
Inherited basis of visceral, abdominal subcutaneous and gluteofemoral fat depots
Association of polycyclic aromatic hydrocarbons in moss with blood biomarker among nearby residents in Portland, Oregon
Implementation and extended evaluation of the Euroimmun Anti-SARS-CoV-2 IgG assay and its contribution to the United Kingdom's COVID-19 public health response
Immune profile and responses of a novel Dengue DNA vaccine encoding EDIII-NS1 consensus design based on Indo-African sequences
Vaccine effectiveness against SARS-CoV-2 transmission to household contacts during dominanceof Delta variant (B.1.617.2), August-September 2021, the Netherlands