Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Quantitative risk assessment of COVID-19 and serious illness among spectators at mass gathering events with vaccine-testing package implementation
Calprotectin and inflammation-associated serum biomarkers determine critical illness in COVID-19
Muscle strength is associated with COVID-19 hospitalization in adults 50 years of age and older
Generalized and specific whole-brain white matter abnormalities in human cocaine and heroin use disorders
Tracking the mental health of home-carers during the first COVID-19 national lockdown: evidence from a nationally representative UK survey
Rapid vigilance and episodic memory decrements in COVID-19 survivors
Factors associated with severe sepsis in diarrheal adults and their outcome at an urban hospital, Bangladesh: A retrospective analysis
Proton magnetic resonance spectroscopy in frontotemporal lobar degeneration-related syndromes
Estimation of the SARS-CoV-2 infection fatality rate in Germany
Taste loss as a distinct symptom of COVID-19: A systematic review and meta-analysis
Establishment and preliminary evaluation of a teaching hospital-based dementia consultation service for rurally-based regional district general hospitals
Meta-topologies define distinct anatomical classes of brain tumors linked to histology and survival
Determinants of COVID-19 vaccine acceptability in Mozambique: the role of institutional trust
Physical behaviours and their association with type 2 diabetes risk in urban South African middle-aged adults: An isotemporal substitution approach
Best practices of multi-ancestry, meta-analytic transcriptome-wide association studies: lessons from the Global Biobank Meta-analysis Initiative
Prevalence and causes of vision impairment in Norwest Portugal: a capture and recapture study
Validating and automating learning of cardiometabolic polygenic risk scores from direct-to-consumer genetic and phenotypic data: implications for scaling precision health research.
PDGRFA-mutant gastrointestinal stromal tumours (GISTs) in Eastern England: clinicopathological features and outcomes of 50 patients diagnosed between 2008-2021
A mixed method study on supportive supervision of Community Health Workers from Central India
Assessing psychosis risk using quantitative markers of disorganised speech
Measuring Voluntary Responses in Healthcare Utilization During and After COVID-19 Pandemic: Evidence from Taiwan
Timeliness of U.S. mortality data releases during the COVID-19 pandemic: delays are associated with electronic death registration system and elevated weekly mortality
The impact of COVID passport mandates on the number of cases of and hospitalizations with COVID-19 in the UK: a difference-in-differences analysis
Kinetics of immune responses to the AZD1222/Covishield vaccine with varying dose intervals in Sri Lankan individuals
Pregnancy and neonatal outcomes of COVID-19, co-reporting of common outcomes from the PAN-COVID and AAP SONPM registry
Pharmacological Management of Acute Spinal Cord Injury: A longitudinal multi-cohort observational study