Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Effectiveness of ChAdOx1-S COVID-19 Booster Vaccination against the Omicron and Delta variants in England
Serious hospital events following symptomatic infection with Sars-CoV-2 Omicron and Delta variants: an exposed-unexposed cohort study in December 2021 from the COVID-19 surveillance databases in France
Inflammation and nitro-oxidative stress in current suicidal attempts and current suicidal ideation: a systematic review and meta-analysis.
Non-invasive brain stimulation effectiveness in anxiety disorder treatment: a meta-analysis on sham/behavior-controlled studies
Protocol for a qualitative study exploring the experiences and perceptions of dolutegravir/lamivudine dual antiretroviral therapy (the PEDAL Study) in people living with HIV
Automated processing of thermal imaging to detect COVID-19
Nursing students' attitudes, knowledge, and willingness to receive the COVID-19 vaccine: A cross-sectional study
Risk factors for severe COVID-19 differ by age: a retrospective study of hospitalized adults
Health impact of routine immunisation service disruptions and mass vaccination campaign suspensions caused by the COVID-19 pandemic: Multimodel comparative analysis of disruption scenarios for measles, meningococcal A, and yellow fever vaccination in 10 low- and lower middle-income countries
Autonomic dysfunction after moderate-severe traumatic brain injury: symptom spectrum and clinical testing outcomes
MASK MANDATES REDUCE COVID-19 MORTALITY: Analysis of 37 States and the District of Columbia, with a further analysis of the impact of demographic and medical factors on efficacy.
Online prescribing for sexually transmitted infections 	- what is on offer? An evaluation of internet pharmacies based in the United Kingdom
Limited impact of Delta variants mutations in the effectiveness of neutralization conferred by natural infection or COVID-19 vaccines in a Latino population
Professionals' views on the mental health problems and vulnerability of children and young people during the early phase of the COVID-19 pandemic
Dynamics of seroconversion of anti-SARS-CoV-2 IgG antibodies in the Czech unvaccinated population: nationwide prospective seroconversion (PROSECO) study
Self-Reported Stress and Questionnaires in People With Autism Spectrum Disorder: a Systematic Review
Immunogenic superiority and safety of Biological E CORBEVAX vaccine compared to COVISHIELD (ChAdOx1 nCoV-19) vaccine studied in a phase III, single blind, multicenter, randomized clinical trial
Morphological Patterns Of Anemia Among Under Five Children On Prevention Of Mother-To-Child Transmission (PMTCT) Programmes In Masogo Sub-County Hospital, Kisumu County, Kenya.
Genetic overlap between multivariate measures of human functional brain connectivity and psychiatric disorders
Excess mortality associated with the COVID-19 pandemic among Californians 18-65 years of age, by occupational sector and occupation: March through October 2020
Metabolic network changes that are strongly associated with Dementia with Lewy Bodies as determined through signed distance and partial correlation analysis
Effect of a single dose of oral iron on pancreatic beta-cell function in healthy individuals: a before-and-after (pre-post) study
Culture and understanding the role of feedback for health professions students: Realist synthesis protocol.
Effects of Diabetes and Blood Glucose on COVID-19 Mortality: A Retrospective Observational Study
Serial interval and transmission dynamics during the SARS-CoV-2 Delta variant predominance in South Korea
Does the Heart Fall Asleep? - Diurnal Variations of Heart Rate Variability in Patients with Disorders of Consciousness