Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Downsizing of contact tracing during COVID-19 vaccine roll-out
Refining long-COVID by a prospective multimodal evaluation of patients with long-term symptoms related to SARS-CoV-2 infection
The Evolution of Young People's Mental Health during COVID-19: Evidence from four Low-and-Middle-Income-Countries
A Preliminary Characterization of Canonicalized and Non-Canonicalized Section Headers Across Variable Clinical Note Types
The UCLA ATLAS Community Health Initiative: promoting precision health research in a diverse biobank
Impact of the COVID-19 pandemic on mental health among Greek adults: a cross-sectional survey.
Beyond ratios - flexible and resilient nurse staffing options to deliver cost-effective hospital care and address staff shortages: a simulation and economic modelling study
Hair loss in females and thromboembolism in males are significantly enriched in post-acute sequelae of COVID (PASC) relative to recent medical history
Dystonia-Parkinsonism Gene Variants in Individuals with Parkinsonism and Brain Scans without Evidence for Dopaminergic Deficit (SWEDD)
Clustering Lifestyle Risk Behaviors among Vietnamese Adolescents and Roles of School: A Bayesian Multilevel Analysis of Global School-Based Student Health Survey 2019
Human Papillomavirus (HPV) self-testing among un- and under-screened Maori, Pasifika, and Asian women in Aotearoa New Zealand: a preference survey among responders and interviews with clinical-trial non-responders
An open label, adaptive, phase 1 trial of high-dose oral nitazoxanide in healthy volunteers: an antiviral candidate for SARS-CoV-2
The late positive potentials evoked by negative emotional pictures predict autonomic responses to an acute psychosocial stressor in healthy adults
Familial risk of psychosis in obsessive-compulsive disorder: Impact on clinical characteristics, comorbidity and treatment response
Evaluation of Primary Prescription Nonadherence Post-discharge from an Inpatient Psychiatry Unit at a Large Urban Community Hospital -an Observational Study
Blood bacterial DNA, intestinal adenoma and colorectal cancer
Cross-sectional association of skeletal muscle mass and strength with dietary habits and physical activity among first-year university students in Japan: Results from KEIJI-U study
Reopening California: Seeking Robust, Non-Dominated COVID-19 Exit Strategies
Test-trace-isolate-quarantine (TTIQ) intervention strategies after symptomatic COVID-19 case identification
Prevalence and Factors Associated with Behavioural Problems in 5-year-old Children Born with Cleft Lip and/or Palate from the Cleft Collective
Potential contribution of climate conditions on COVID-19 pandemic transmission over West and North African countries
Epidemiological dynamics of SARS-CoV-2 VOC Gamma in Rio de Janeiro, Brazil
Infected surfaces as a source of transmissible material in healthcare settings dealing with COVID 19 patients
Multivariate Modeling of Direct and Proxy GWAS Indicates Substantial Common Variant Heritability of Alzheimer's Disease
One year of modeling and forecasting COVID-19 transmission to support policymakers in Connecticut
Breast milk exposure is associated with cortical maturation in preterm infants