Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Serosurvey in two rural areas evidences recent and previously undetected WNV and SLEV circulation in Costa Rica
Molecular diagnosis of SARS-CoV-2: a validation of saliva samples
Effect of short-term heating on bioefficacy of deltamethrin-coated long-lasting insecticidal nets
The external validity of four risk scores predicting 30-day mortality after surgery
Silver diamine fluoride and oral-health related quality of life: A network meta-analysis
Citizens' Attitudes Under Covid19: a cross-country panel survey of public opinion in 11 democracies
Clinical Validation of a Proteomic Biomarker Threshold for Increased Risk of Spontaneous Preterm Birth
Somatic activating BRAF variants cause isolated lymphatic malformations
Characteristics and mechanism of reciprocal ST-segment depression in acute ST segment elevation myocardial infarction
The impact of the initial and 2nd national COVID-19 lockdown on mental health in young people with and without pre-existing depressive symptoms
Evaluation of Junior Doctors Knowledge of Corneal Donation and the New Opt-Out System in England
Changes in health behaviors, mental and physical health among older adults under severe lockdown restrictions during the COVID-19 pandemic in Spain
Excess Mortality by Suicide associated with COVID-19 in Japan through August, 2021
Development of a new Aerosol Barrier Mask for mitigation of spread of SARS-CoV-2 and other infectious pathogens
Reference values and validation of the 1-min sit-to-stand test in healthy 5- to 16-year-old youth: a cross-sectional study
Spatiotemporal epidemiology of HIV between 1997 and 2020 in Kerman, Iran
1H-NMR metabolomics-based surrogates to impute common clinical risk factors and endpoints
Protection afforded by prior infection against SARS-CoV-2 reinfection with the Omicron variant
Improved Prediction of COVID-19 Transmission and Mortality Using Google Search Trends for Symptoms in the United States
Distinct genome-wide DNA methylation and gene expression signatures in classical monocytes from African American patients with systemic sclerosis
Metformin Is Associated with Favorable Outcomes in Patients with COVID-19 and Type 2 Diabetes Mellitus
Non-pharmaceutical interventions and the emergence of pathogen variants
Perceptions of immunity and vaccination certificates among the general population of Geneva, Switzerland.
Patterns of antibiotic cross-resistance by bacterial sample source: a retrospective cohort study
Epidemiological health assessment in primary health care in the State of Qatar- 2019
Do Lockdowns Bring about Additional Mortality Benefits or Costs? Evidence based on Death Records from 300 Million Chinese People