Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: SARS-CoV-2 alpha variant: is it really more deadly? A population-level observational study.
Heterogeneity in testing for infectious diseases
Place, cause and expectedness of death and relationship to the deceased are associated with poorer experiences of end-of-life care and challenges in early bereavement: Risk factors from an online survey of people bereaved during the COVID-19 pandemic
Temporal Increase in Neutralization Potency of SARS-CoV-2 Antibodies and Reduced Viral Variant Escape after Sputnik V Vaccination
Problems with Evidence Assessment in COVID-19 Health Policy Impact Evaluation (PEACHPIE): A systematic strength of methods review
How to predict relapse in leukaemia using time series data: A comparative in silico study.
Coadministration of AYUSH 64 as an adjunct to Standard of Care in mild and moderate COVID-19: A randomised, controlled, multicentric clinical trial
Variation in US Drug Overdose Mortality Within and Between Hispanic/Latine Subgroups: A Disaggregation of National Data
A Novel Multiplex PCR Based Detection Assay Using Saliva or Nasopharyngeal Samples for SARS-Cov-2, Influenza A and B: Clinical Validation and Utility for Mass Surveillance.
Development of a core measurement set for research in degenerative cervical myelopathy: a study protocol (AO Spine RECODE-DCM CMS)
Acute and persistent symptoms in non-hospitalized PCR-confirmed COVID-19 patients
IT ambidexterity driven patient agility and hospital patient service performance: a variance approach
Critical Arterial Stenosis Revisited
Analysis: A meta-analysis of Early Results to predict Vaccine efficacy against Omicron
In search for the SARS-CoV-2 protection correlate: A head-to-head comparison of two quantitative S1 assays in a group of pre-characterized oligo-/asymptomatic patients
Continuous Positive Airway Pressure (CPAP) for Moderate to Severe Covid19 Acute Respiratory Distress Syndrome (CARDS) in a Resource limited setting
SARS-CoV-2 RNA and antibody detection in human milk from a prospective multicenter study in Spain
Identification of social engagement indicators associated with autism spectrum disorder using a game-based mobile application
Mortality in individuals treated with COVID-19 convalescent plasma varies with the geographic provenance of donors
Durable Humoral and Cellular Immune Responses Following Ad26.COV2.S Vaccination for COVID-19
Predictors of Developmental Defects of Enamel in the Primary Maxillary Central Incisors using Bayesian Model Selection
Critical success factors for high routine immunization performance: A case study of Senegal
Developing and piloting a preterm birth registry prioritizing social determinants of health and patient-reported data
VALIDATION OF A SALIVA-BASED TEST FOR THE MOLECULAR DIAGNOSIS OF SARS-CoV-2 INFECTION
Comparison of adverse events between COVID-19 and Flu vaccines
Relative contribution of leaving home for work or education, transport, shopping and other activities on risk of acquiring COVID-19 infection outside the household in the second wave of the pandemic in England and Wales