Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: COVID-19 Vaccine Rollouts and the Reproduction of Urban Spatial Inequality: Disparities Within Large U.S. Cities in March and April 2021 by Racial/Ethnic and Socioeconomic Composition
Combining science and social engagement againstCovid-19 in a Brazilian Slum
Long-term Stored Platelets Coupled to Thrombospondin-1 Detection for Rapid and Accurate Identification of Pathogenic HIT Antibodies
Calorie reformulation: A systematic review and meta-analysis examining the effect of manipulating food energy density on daily energy intake and body weight
Low-Dose Naltrexone/Acetaminophen Combination in the Preventive Treatment of Migraine: Findings of a Small, Randomized, Double-Blind, and Placebo-Controlled Clinical Trial with an Open-Label Extension for None-Responders
Controlling risk of SARS-CoV-2 infection in essential workers of enclosed food manufacturing facilities
Economic evaluation of a cluster randomized, non-inferiority trial of differentiated service delivery models of HIV treatment in Zimbabwe
SARS-CoV-2 antibodies detected in human breast milk post-vaccination
Hi-C detects genomic structural variants in peripheral blood of pediatric leukemia patients
NATURAL HISTORY OF LAFORA DISEASE A Prognostic Systematic Review and Individual Participant Data Meta-Analysis.
Molecular epidemiology of HIV-1 in Oryol Oblast, Russia
Prevalence and Factors associated with Mental health impact of COVID-19 Pandemic in Bangladesh: A survey-based cross-sectional study
Time-to-event estimation of birth year prevalence trends: a method to enable investigating the etiology of childhood disorders including autism
Improved detection of SBDS gene mutation by a new method of next-generation sequencing analysis based on the Chinese mutation spectrum
Analysis of SARS-CoV-2 variants from 24,181 patients exemplifies the role of globalisation and zoonosis in pandemics
Genomic Sequencing of SARS-COV-2 in Rwanda: evolution and regional dynamics
Assessing clinical outcomes of vancomycin treatment in adult patients with penicillin-resistant Enterococcus faecium bacteremia
Impact of COVID-19 pandemic on diet behaviour among UK adults: a longitudinal analysis of the HEBECO study
Molecular mapping of urinary complement peptides in kidney diseases
Single-cell transcriptomic atlas of individuals receiving inactivated COVID-19 vaccines reveals distinct immunological responses between vaccine and natural SARS-CoV-2 infection
Cellular and humoral immunity to SARS-CoV-2 infection in multiple sclerosis patients on ocrelizumab and other disease-modifying therapies: a multi-ethnic observational study
Decreased hydraulic forces are incrementally associated with survival beyond conventional measures of diastolic dysfunction
The organisation of nurse staffing in intensive care units: a qualitative study
Delayed bystander CD8 T cell activation, early immune pathology and persistent dysregulation characterise severe COVID-19
COVID-19 testing systems and their effectiveness in small, semi-isolated groups for sports events
Semi-automatic segmentation of the fetal brain from Magnetic Resonance Imaging