Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: SARS-CoV-2 serological findings and exposure risk among employees in school and retail after first and second wave COVID-19 pandemic in Oslo, Norway: a cohort study
The Ultra Fit Community Mask - Toward Maximal Respiratory Protection via Personalized Face Fit
Virtual Recruitment is Here to Stay: 2020 ID Fellowship Program and Matched Applicant Recruitment Experiences
Breast and colorectal cancer awareness in Malaysians and barriers towards screening: A systematic review
Ultrastructural characterisation of young and aged dental enamel by atomic force microscopy
Declines and pronounced state disparities in prescription opioid distribution in the United States
Contribution of Schools to Covid-19 Pandemic: Evidence from Czechia
Spatial Prevalence and Determinants of Malaria among under-five Children in Ghana
Metformin: We need to either put it in our drinking water or rethink how we study it
Examining Health Service Rates Among Residents of Retirement Homes and Other Older Adult Populations in Ontario, Canada: A Population-Based Cohort Study
Low Vision Rehabilitation Training and Referral Patterns Among Ophthalmologists
The Contribution of Pharmacogenetic Drug Interactions to 90-Day Hospital Readmissions: Preliminary Results from a Real-World Healthcare System
Risk assessment for airborne disease transmission by poly-pathogen aerosols
Regular testing of asymptomatic healthcare workers identifies cost-efficient SARS-CoV-2 preventive measures
Features of an aseasonal 2021 RSV epidemic in the UK and Ireland: analysis of the first 10,000 patients
High-fidelity discrimination of ARDS versus other causes of respiratory failure using natural language processing and iterative machine learning
High-throughput discovery of SLC6A1 variants affecting GABA transport in neurological disorders
Background rates of five thrombosis with thrombocytopenia syndromes of special interest for COVID-19 vaccine safety surveillance: incidence between 2017 and 2019 and patient profiles from 25.4 million people in six European countries
Genetic Susceptibility Of Cytotoxic T Lymphocyte-Associated Antigen 4 Gene Polymorphism In The Onset Of Arthritis
The interplay between subcritical fluctuations and import: understanding COVID-19 epidemiology dynamics
Prevalence of different sleep problems in patients with respiratory diseases presented to a respiratory outdoor clinic: A Descriptive analysis
Individual's daily behaviour and intergenerational mixing in different social contexts of Kenya
Comprehensive genetic and functional analysis of FcγRs in rituximab therapy for autoimmunity reveals a key role for FcγRIIIa on NK cells
Leveraging fine-mapping and non-European training data to improve cross-population polygenic risk scores
A systematic review of resting state functional MRI connectivity changes and cognitive impairment in multiple sclerosis
Characteristics of health-related quality of life and related factors in patients with brain tumors treated with rehabilitation therapy