Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: T1/T2 Ratio Imaging Improves Cortical Lesion Contrast in Multiple Sclerosis on 3T MRI
Deafferentation of Olfactory Bulb in Subjects Dying with COVID-19
Risk of Myocarditis from COVID-19 Infection in People Under Age 20: A Population-Based Analysis
COVID-19 Patients Symptoms: Gastrointestinal Presentations, Comorbidities and Outcome in a Canadian Hospital setting
Statistical Design and Analysis of PCR Tests for Fast Mutating Viruses
A cohort study on the duration of Plasmodium falciparum infections during the dry season in The Gambia
How different pre-existing mental disorders and their co-occurrence affects clinical outcomes of COVID-19? A study based on real-world data in the Southern United States
Effects of gender-affirming hormone therapy on gray matter density, microstructure and monoamine oxidase A levels in transgender subjects
High prevalence of Plasmodium malariae and Plasmodium ovale in co-infections with Plasmodium falciparum in asymptomatic malaria parasite carriers in Southwest Nigeria
Interim estimates of increased transmissibility, growth rate, and reproduction number of the Covid-19 B.1.617.2 variant of concern in the United Kingdom
The early-stage comprehensive costs of routine PrEP implementation and scale-up in Zambia
Long-distance migration was associated with increased prevalence of post-traumatic stress disorder in Syrian refugees
Prognosis and hematological findings in patients with COVID-19 in an Amazonian population of Peru
Genomic profiles of Covishield and Covaxin breakthrough SARS-CoV-2 strains from Odisha, India
The SARS-CoV2 pandemic explained via asymptomatic infection and susceptibility heterogeneity. Buenos Aires First Wave
Elastomeric Harnesses Decrease Aerosol Particles Leak and Improve the Fit of Surgical Masks
The spread of SARS-CoV-2 variant Omicron with the doubling time of 2.0-3.3 days can be explained by immune evasion
Genomic answers for children: Dynamic analyses of >1000 pediatric rare disease genomes
A Computational Growth Framework for Biological Tissues: Application to Growth of Aortic Root Aneurysm Repaired by the V-shape Surgery
Genetic overlap between mood instability and alcohol-related phenotypes suggests shared biological underpinnings
Single Dose Vaccination in Healthcare Workers Previously Infected with SARS-CoV-2
Trends and associated factors for Covid-19 hospitalisation and fatality risk in 2.3 million adults in England
Decreased Immune Response to COVID-19 mRNA Vaccine in Patients with Inflammatory Bowel Diseases Treated with Anti TNFα
Simple and economical RNA extraction and storage packets for viral detection from serum or plasma
Characterizing the spatiotemporal heterogeneity of the COVID-19 vaccination landscape
Preparations of Dutch emergency departments for the COVID-19 pandemic: a questionnaire-based study