Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Early effectiveness of COVID-19 vaccination with BNT162b2 mRNA vaccine and ChAdOx1 adenovirus vector vaccine on symptomatic disease, hospitalisations and mortality in older adults in England
Emergence of SARS-CoV-2 variants of concern in the pediatric population of the United States
Estimation of the Ascertainment Bias in Covid Case Detection During the Omicron Wave
A Generalizable Data Assembly Algorithm for Infectious Disease Outbreaks
Semantic Segmentation to Extract Coronary Arteries in Invasive Coronary Angiograms
Sociodemographic inequality in COVID-19 vaccination coverage amongst elderly adults in England: a national linked data study
Protection Across Age Groups of BNT162b2 Vaccine Booster against Covid-19
The fomite contribution to the transmission of COVID-19 in the UK: an evolutionary population estimate
Passively Sensing SARS-CoV-2 RNA in Public Transit Buses
Solar UV B/A Radiation is Highly Effective in Inactivating SARSCoV2
Investigating heterogeneous genetic effects contributing to smoking behaviors
Do Covid-19 patients needing ICU admission have worse 6 months follow up outcomes when compared with hospitalized non-ICU patients? A prospective cohort study
BrainCheck: Validation of a Computerized Cognitive Test Battery for Detection of Mild Cognitive Impairment and Dementia
Do school closures reduce community transmission of COVID-19? A systematic review of observational studies
Multi-ancestry gene-trait connection landscape using electronic health record (EHR) linked biobank data
Detection and quantification of enteric pathogens in aerosols near uncontained fecal waste streams in cities with poor sanitation
The association between SARS-CoV-2 infection and neuronal damage: A population-based nested case-control study
An investigation of spatial-temporal patterns and predictions of the COVID-19 pandemic in Colombia, 2020-2021
Scaling Up the Discovery of Hesitancy Profiles by Identifying the Framing of Beliefs towards Vaccine Confidence in Twitter Discourse
Secondary transmission of SARS-CoV-2 in educational settings in Northern Italy from September 2020 to April 2021: a population-based study
Distinct cellular dynamics associated with response to CAR-T therapy for refractory B-cell lymphoma
Risk factors for burnout among couriers: A systematic review of the Chinese and English language literatures
Inexpensive multi-patient respiratory monitoring system for helmet ventilation during COVID-19 pandemic
T cell receptor sequencing specifies psoriasis as a systemic and atopic dermatitis as a skin-focused, allergen-driven disease
Interplay between the Genetics of Personality Traits, severe Psychiatric Disorders, and COVID-19 Host Genetics in the Susceptibility to SARS-CoV-2 Infection
Perilipin-1 autoantibodies linked to idiopathic lipodystrophy in the setting of two distinct breaks in immune tolerance