Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: A Scaling Law for PCR Positivity in the COVID Second Wave
Determinants of pre-vaccination antibody responses to SARS-CoV-2: a population-based longitudinal study (COVIDENCE UK)
Primary care during the COVID-19 pandemic - observations and challenges identified through a survey and interviews with community paediatricians: the calm before the storm
COVID-19 vaccine incentive scheduling using an optimally controlled reinforcement learning model
Description and clinical validation of a real-time AI diagnostic companion for fetal ultrasound examination
Evaluation of Ultrafast Wave-CAIPI 3D FLAIR in the Visualization and Volumetric Estimation of Cerebral White Matter Lesions
Multi-scalar data integration links glomerular angiopoietin-tie signaling pathway activation with progression of diabetic kidney disease
Gene and metabolite expression dependence on body mass index in human myocardium.
Estimating the risk reduction of isolation on COVID-19 non-household transmission and severe/critical illness in non-immune individuals: September to November 2021
A continuous indicator of food environment nutritional quality
Web and social media searches highlight menstrual irregularities as a global concern in COVID-19 vaccinations
Effectiveness and safety of reactive focal mass drug administration (rfMDA) using dihydroartemisinin-piperaquine to reduce malaria transmission in very low-endemic setting of Eswatini: a pragmatic cluster randomised controlled trial
Predictors of all-cause mortality among patients hospitalized with influenza, respiratory syncytial virus, or SARS-CoV-2
Synchrony-Division Neural Multiplexing: An Encoding Model
Vaccine effectiveness against SARS-CoV-2 infection and COVID-19-related hospitalization with the Alpha, Delta and Omicron SARS-CoV-2 variants: a nationwide Danish cohort study
Analysis of 200,000 exome-sequenced UK Biobank subjects illustrates the contribution of rare genetic variants to hyperlipidaemia
Smoking and socio-economic factors linked to acute exacerbations of COPD: analysis from an Asthma + Lung UK survey
A review of the effectiveness and experiences of welfare advice services co-located in health settings: a critical narrative systematic review.
Non-uniform UV-C dose across N95 facepieces can cause 2.9-log variation in SARS-CoV-2 inactivation
Detection of SARS-CoV-2 in air and on surfaces in rooms of infected nursing home residents
Assessing the relationship between measures of healthcare access and functional limitations among individuals with Chronic Obstructive Pulmonary Disease (COPD)
The COVID-19 Infodemic: The complex task of elevating signal and eliminating noise.
Tracing the trajectories of SARS-CoV-2 variants of concern between December 2020 and September 2021 in the Canary Islands (Spain)
An Integrated and Automated Tool for Quantification of Biomechanics in Fetal and Neonatal Echocardiography
What delirium detection tools are used in routine clinical practice in the UK? A Freedom of Information investigation of UK hospitals.
Screening for the alpha variant of SARS-CoV-2 (B.1.1.7) and the impact of this variant on circulating biomarkers in hospitalised patients