Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Evaluation of a SARS-CoV-2 Vaccine NVX-CoV2373 in Younger and Older Adults
Age-Specific Changes in Virulence Associated with SARS-CoV-2 Variants of Concern
Sequential epiretinal stimulation improves discrimination in simple shape discrimination tasks only
Androgen receptor polyQ alleles and COVID-19 severity in men: a replication study
Variation in influenza vaccine assessment, receipt, and refusal by the concentration of Medicare Advantage enrollees in U.S. nursing homes
Incorporating Genetic Determinants of Prostate-Specific Antigen Levels Improves Prostate Cancer Screening
The impact of chemosensory dysfunctions on weight loss
Three year experience of Upper Gastrointestinal Endoscopic procedures at a tertiary care hospital of South Punjab
MRI-based classification of neuropsychiatric systemic lupus erythematosus patients with self-supervised contrastive learning
Deep neural networks allow expert-level brain meningioma detection, segmentation and improvement of current clinical practice
Quarantine and testing strategies to ameliorate transmission due to travel during the COVID-19 pandemic: a modelling study
The Challenges for Screening and Diagnosing Gestational Diabetes Mellitus in Brazil: a cross-sectional study in a low-risk obstetric hospital.
COVID-19 vaccines effectiveness against symptomatic SARS-CoV-2 Delta variant infection: a population-based case-control study in St. Petersburg, Russia
Optimizing vaccine allocation for COVID-19 vaccines: potential role of single-dose vaccination.
Detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a fourplex real-time quantitative reverse transcription-PCR assays.
Unexplained Dyspnea and Cardiopulmonary Exercise Testing: Rationale for a Dyspnea Clinic
Impact of health system strengthening on delivery strategies to improve child immunization coverage and inequalities in rural Madagascar
Sleep health education and a personalized smartphone application improve sleep and productivity and reduce healthcare utilization among employees: Results of a randomized clinical trial
The Impact of U.S. County-Level Factors on COVID-19 Morbidity and Mortality
Investigating the contributions of circadian pathway and insomnia risk genes to autism and sleep disturbances
Care Models for Long COVID: A Rapid Systematic Review
Forecasting the Spread of the COVID-19 Epidemic in Lombardy: A Dynamic Model Averaging Approach
Protection against omicron severe disease 0-7 months after BNT162b2 booster
Access to palivizumab among children at high risk of respiratory syncytial virus complications in English hospitals
Metabolic phenotyping reveals a potential link between elevated faecal amino acids, diet and symptom severity in individuals with severe mental illness
A survey of clinical opinions and preferences on the non-surgical management of intermittent exotropia in China