Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Socio-demographic characteristics and their relation to medical service consumption among elderly in Israel during the COVID-19 lockdown in 2020 compared to the corresponding period in 2019
Estimation of the Reproduction Number for COVID-19 Based on Latest Vaccination Results and the Timing for Herd-Immunity: Prospect for 2021
HAVAs: Alzheimer s Disease Detection using Normative and Pathological Lifespan Models
The gut microbiome and rotavirus vaccine immunogenicity in rural Zimbabwean infants
Predicting COVID-19 Vaccine Efficacy from Neutralizing Antibody Levels
Reduced dementia incidence following varicella zoster vaccination in Wales 2013--2020
Cortical and subcortical grey matter micro-structure is associated with polygenic risk for schizophrenia
The Digital Analytic Patient Reviewer (DAPR) for COVID-19 Data Mart Validation
Combined prenatal Lactobacillus reuteri and ω-3 supplementation synergistically modulates DNA methylation in neonatal T helper cells
Inducing Body Weight Supported Postural Perturbations during Gait and Balance Exercises to Improve Balance after Stroke: A Pilot Study
Excess mortality during the COVID-19 pandemic: a geospatial and statistical analysis in Mogadishu, Somalia
Evolution of COVID-19 symptoms during the first 9 months after illness onset
Miami-Dade: A Case Study of Domestic Violence Arrests During the COVID-19 Pandemic
Relationship between astrocyte reactivity, using novel 11C-BU99008 PET, and glucose metabolism, grey matter volume and amyloid load in cognitively impaired individuals
Cleaning and disinfecting surfaces in hospitals and long-term care facilities for reducing hospital and facility-acquired bacterial and viral infections: A systematic review
Associations between antipsychotic use, substance use and relapse risks in patients with schizophrenia - real-world evidence from two national cohorts
Clinical validation of the quantitative Siemens SARS-CoV-2 spike IgG assay (sCOVG) reveals improved sensitivity and a good correlation with virus neutralization titers
How social engagement against Covid-19 in a Brazilian Slum helped mitigate rising statistics
Time Between Viral Loads for People with HIV during the COVID-19 Pandemic
Differential pre-pandemic IgA reactivity against SARS-CoV-2 and circulating human coronaviruses measured in milk collected in Uganda and the USA
Prolonged SARS-CoV-2 infection in patients with lymphoid malignancies
Measuring Integrated Novel Dimensions in Neurodevelopmental and Stress-related Mental Disorders (MIND-Set): a cross-sectional comorbidity study from an RDoC perspective
Seroresponse to SARS-CoV-2 vaccines among maintenance dialysis patients over six months
Infectious SARS-CoV-2 Virus in Symptomatic COVID-19 Outpatients: Host, Disease, and Viral Correlates
Vulnerabilities in child wellbeing among primary school children: a cross-sectional study in Bradford, UK
An evaluation of metabolic, dietetic, and nutritional status reveals impaired outcomes in breast cancer patients undergoing chemotherapy compared with a matched control group.