Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Neutralizing antibody responses to SARS-CoV-2: a population based seroepidemiological analysis in Delhi, India
Development of an index to assess Covid-19 hospital care installed capacity in the 450 Brazilian Health Regions
Genomic epidemiology reveals the impact of national and international restrictions measures on the SARS-CoV-2 epidemic in Brazil
ThinkCancer! The multi-method development of a complex behaviour change intervention to improve the early diagnosis of cancer in primary care
Positive end expiratory pressure in invasive and non-invasive ventilation of COVID-19 acute respiratory distress syndrome: computational modeling illuminates the data
Acute kidney injury after liver resection: A systematic review, meta-analysis, and metaregression of factors affecting it.
Evaluation of the INDICAID COVID-19 Rapid Antigen Test in symptomatic populations and asymptomatic community testing
3D printed biomimetic cochleae and machine learning co-modelling provides clinical informatics for cochlear implant patients
BODY MASS INDEX TRAJECTORY BEFORE DEATH IN COMMUNITY-DWELLING OLDER ADULTS. POPULATION-BASED COHORT STUDY
Optimal dose and safety of molnupiravir in patients with early SARS-CoV-2: a phase 1, dose-escalating, randomised controlled study
Detection of SARS-CoV-2 in Different Human Biofluids Using the Loop-Mediated Isothermal Amplification Assay: A Prospective Diagnostic Study in Fortaleza, Brazil
SARS-CoV-2 IgG seroprevalence in the Okinawa Main Island and remote islands in Okinawa, Japan, 2020-2021.
Past SARS-CoV-2 infection elicits a strong immune response after a single vaccine dose
Characterizing Long COVID in an International Cohort: 7 Months of Symptoms and Their Impact
Telehealth in Rheumatology: The 2021 Arab League of Rheumatology Best Practice Guidelines
Beyond poverty as a proxy: reducing inequality in infant mortality by identifying and targeting higher risk births
Rapid review of social contact patterns during the COVID-19 pandemic
Genetic associations with severe COVID-19
Understanding the Puzzle of Primary Health-care Use: Evidence from India
Temporal association of reduced serum vitamin D with COVID-19 infection: A single-institution case-control and historical cohort study
Is higher-level trauma center care associated with better outcomes in patients injured by low-energy trauma?
Impact of biologics and small molecules for Inflammatory Bowel Disease on COVID-19 Related Hospitalization: A Systematic Review and Meta-analysis
NIH Funding of COVID-19 Research in 2020: a Cross Sectional Study
Uganda Genome Resource: A rich research database for genomic studies of communicable and non-communicable diseases in Africa
A prospective evaluation of the analytical performance of GENECUBE(R) HQ SARS-CoV-2 and GENECUBE(R) FLU A/B
Expression of ACE2 receptor, soluble ACE2, Angiotensin I, Angiotensin II and Angiotensin (1-7), is modulated in COVID-19 patients.