Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Antiviral metabolite 3'-Deoxy-3',4'-didehydro-cytidine is detectable in serum and identifies acute viral infections including COVID-19
Prospective assessment of catheter-associated bacteriuria in nursing home residents: clinical presentation, epidemiology, and colonization dynamics
Stranded abroad during the COVID-19 pandemic: examining the psychological and financial impact of border restrictions
A prospective study of asymptomatic SARS-CoV-2 infection among individuals involved in academic research under limited operations during the COVID-19 pandemic
Comparative analyses of all FDA EUA-approved rapid antigen tests and RT-PCR for COVID-19 quarantine and surveillance-based isolation
Law, Criminalisation and HIV in the World: Have countries that criminalise achieved more or less successful AIDS pandemic response?
Loneliness among people with severe mental ill health during the COVID-19 pandemic: results from a linked UK population cohort study
Distinct components of cardiovascular health are linked with age-related differences in cognitive abilities
Pre-clinical Research of Human Amnion-derived Mesenchymal Stem Cells and its First Clinical Treatment for a Severe Uremic Calciphylaxis Patient
A joint spatial marked point process model for dengue and severe dengue in Medellin, Colombia.
Visible light optical coherence tomography of peripapillary retinal nerve fiber layer reflectivity in glaucoma
Towards environmental detection of Chagas disease vectors and pathogen
A large, curated, open-source stroke neuroimaging dataset to improve lesion segmentation algorithms
Longitudinal changes in home confinement and mental health implications: A 17-month follow-up study in England during the COVID-19 pandemic
Physical Injuries and Burns among Refugees in Lebanon: Implications for Programs and Policies
Xenobiotic tracers uncover the gastrointestinal passage, intestinal epithelial cellular uptake and Ago2 loading of milk miRNAs in neonates
Intravenous Iron Decreases Rehospitalizations but Does not Change mortality in Patients Admitted with Acute Heart Failure and Iron Deficiency: A Systematic review and Meta-analysis
Care Models for Long COVID: A Rapid Systematic Review
Identifying variation in GP referral rates: an observational study of outpatient headache referrals.
Factors Affecting Guardians' Decision Making on Clinic-based Purchase of Children's Spectacles in Nigeria
Proteomics analysis in urinary bladder cancer patients identifies urinary SOD2 as a predictive marker of recurrence
Sex disparities in COVID-19 mortality vary considerably across time: The case of New York State
Estimating pulse wave velocity from the radial pressure wave using machine learning algorithms
Revisiting Bias in Odds Ratios
Socio-economic deprivation and cancer incidence in England: Quantifying the role of smoking
Hospitalization Data Supports Correlation of Lower Covid-19 Severity vs. Universal BCG Immunization in the Early Phase of the Pandemic