Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Using a household structured branching process to analyse contact tracing in the SARS-CoV-2 pandemic
Colder and drier winter conditions are associated with greater SARS-CoV-2 transmission: a regional study of the first epidemic wave in north-west hemisphere countries.
Functional respiratory capacity in the elderly after COVID-19 -- a pilot study
Gout, rheumatoid arthritis and the risk of death from COVID-19: an analysis of the UK Biobank
Empirical evaluation of the sensitivity of background incidence rate characterization for adverse events across an international observational data network
Preclinical and clinical validation of a novel injected molded swab for molecular assay detection of SARS-CoV-2 virus
A cross-sectional survey of burnout in a sample of resident physicians in Sudan
Bereavement care for ethnic minority communities: A systematic review of access to, models of, outcomes from, and satisfaction with, service provision
Efficacy of conservative physiotherapeutic approaches in hormonal-related headaches: a scoping review protocol.
Trends in accident-related admissions to pediatric intensive care units during the first COVID-19 lockdown in Germany
Sensitivity of rapid antigen testing and RT-PCR performed on nasopharyngeal swabs versus saliva samples in COVID-19 hospitalized patients: results of a prospective comparative trial (RESTART).
SARS-CoV-2 R.1 lineage variants prevailed in Tokyo in March 2021
Community-based Case Studies of Vaccine Hesitancy and the COVID-19 Response in South Africa; The VaxScenes Study
Postnatal maternal depressive symptoms and behavioural outcomes in term- and preterm-born toddlers
POPULATION-BASED SERO-EPIDEMIOLOGICAL STUDY PROTOCOL FOR THE IMPACT OF SMOKING ON SARS-COV-2 INFECTION AND COVID-19 OUTCOMES - THE TROINA STUDY
The evaluation of a newly developed antigen test (QuickNavi™-COVID19 Ag) for SARS-CoV-2: A prospective observational study in Japan
Antibodies elicited by SARS-CoV-2 infection and boosted by vaccination neutralize an emerging variant and SARS-CoV-1
COVID-19 associated autoimmunity is a feature of severe respiratory disease - a Bayesian analysis.
Outcomes of gastrointestinal fistulas: Results from a multi-continent, multi-national, multicenter cohort
INDI - Integrated Nanobody Database for Immunoinformatics
Phase Recognition in Contrast-Enhanced CT Scans based on Deep Learning and Random Sampling
The evolutionary landscape of SARS-CoV-2 variant B.1.1.519 and its clinical impact in Mexico City
Technology-delivered undergraduate medical education involving patients and carers: A rapid systematic review
Two-step strategy for the identification of SARS-CoV-2 variant of concern 202012/01 and other variants with spike deletion H69-V70, France, August to December 2020
Design and validation of HIV peptide pools for detection of HIV-specific CD4+ and CD8+ T cells
A Multidisciplinary Prematurity Research Cohort Study