Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: SARS-CoV-2 anti-spike antibody levels following second dose of ChAdOx1 nCov-19 or BNT162b2 in residents of long-term care facilities in England (VIVALDI)
University students and staff able to maintain low daily contact numbers during various COVID-19 guideline periods
A multicentre, prospective, randomised controlled trial to evaluate hexaminolevulinate photodynamic therapy (Cevira(R)) as a novel treatment in patients with high grade squamous intraepithelial lesion: APRICITY Phase 3 study protocol
Mast cells differentiated in synovial fluid and resident in osteophytes exalt the inflammatory pathology of osteoarthritis
Force of infection: A determinant of vaccine efficacy?
Risk factors for infection, predictors of severe disease and antibody response to COVID-19 in patients with rheumatic diseases in Portugal - a multicentre, nationwide study
Non-replication of structural brain changes from Mindfulness-Based Stress Reduction: Two combined randomized controlled trials
Genome Wide Association Metanalysis Of Skull Bone Mineral Density Identifies Loci Relevant For Osteoporosis And Craniosynostosis
Accuracy of tongue swab testing using Xpert MTB-RIF Ultra for tuberculosis diagnosis
Molecular Programs of Glomerular Hyperfiltration in Early Diabetic Kidney Disease
Impact of health system strengthening on delivery strategies to improve child immunization coverage and inequalities in rural Madagascar
COVID-19 among bartenders and waiters before and after pub lockdown
Tackling the first COVID-19 wave at the Cape Town Hospital of Hope: Why was it such a positive experience for staff?
Olfactory loss is an early and reliable marker for COVID-19
Spatial clustering in vaccination hesitancy: the role of social influence and social selection
Genomic map of blood group alleles in Malaysian indigenous Orang Asli population from whole genome sequences
Trends and country-level variation in age at first sex in sub-Saharan Africa among birth cohorts entering adulthood between 1985 and 2020
The 501Y.V2 SARS-CoV-2 variant has an intermediate viral load between the 501Y.V1 and the historical variants in nasopharyngeal samples from newly diagnosed COVID-19 patients
NFL COVID-19 Return to Sport Injury Prevalence Comparison
Effectiveness of CoronaVac in the setting of high SARS-CoV-2 P.1 variant transmission in Brazil: A test-negative case-control study
Genetic risk estimates for offspring of patients with Stargardt disease
Single-cell genomics improves the discovery of risk variants and genes of cardiac traits
SARS-CoV-2 vaccination predicts COVID-19 progression and outcomes in hospitalized patients
Dissecting the Epigenomic Differences between Smoking and Nicotine Dependence in a Veteran Cohort
COVID-19 transmission in a theme-park
Assessing the Use of Prescription Drugs in Obese Respondents in the National Health and Nutrition Examination Survey