Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Assessing unused residual Pfizer-BioNTech Covid-19 vaccine: a community observational study
Neutralization of SARS-CoV-2 variants by rVSV-ΔG-spike-elicited human sera
Mental health in the UK Biobank: a roadmap to self-report measures and neuroimaging correlates
Multisystemic inflammatory syndrome following COVID-19 mRNA vaccine in children: a national post-authorization pharmacovigilance study
Evolution of DNA methylome from precancerous lesions to invasive lung adenocarcinomas
Performance of a machine learning model in recognition of normal tissue from histological sections
Antibody Tests: They Are More Important Than We Thought
Effectiveness of 2 and 3 mRNA COVID-19 Vaccines Doses against Omicron and Delta-Related Outpatient Illness among Adults, October 2021 - February 2022
Impacts of Regional Lockdown Policies on COVID-19 Transmission in India in 2020
Subtypes of early childhood caries predict future caries experience
The impact of National Centralized Drug Procurement policy on the use of policy-related original and generic drugs in public medical institutions in China: A difference-in-difference analysis based on national database
The energy balance theory: an unsatisfactory model of body composition fluctuations
Pre-existing anxiety, depression, and neurological disability are associated with long COVID: A prospective and longitudinal cohort study of the United Kingdom Multiple Sclerosis Register
How reacted USA with the first case of Bubonic Plague on 21 August?
ClearSpeechTogether: a rater blinded, single, controlled feasibility study of speech intervention for speakers with progressive ataxia
Independent associations of sleep timing, duration and quality with adiposity and weight status in a national sample of adolescents: the UK Millennium Cohort Study
Immunogenicity of BNT162b2 Vaccine in Patients with Inflammatory Bowel Disease on Infliximab Combination Therapy: A Multicenter Prospective Study
A molecular surveillance-guided vector control response to concurrent dengue and West Nile virus outbreaks in a COVID-19 hotspot of Florida
Assessment of breakthrough infections among post-vaccinated healthcare workers in a Tertiary Dental Hospital in New Delhi, India
Neural Correlates of Eye Contact and Social Function in Autism Spectrum Disorder
Structuring clinical text with AI: old vs. new natural language processing techniques evaluated on eight common cardiovascular diseases
Waning of PCV13 vaccine-induced antibody levels within the first year of life, using a 3+0 schedule: an observational population-level serosurveillance study among children under 5 years old in Blantyre, Malawi
High vaccine effectiveness against COVID-19 infection and severe disease among residents and staff of long-term care facilities in Norway, November - June 2021
Beyond the limits of circadian entrainment: Non-24-hour sleep-wake disorder, shift work, and social jet lag
COVID-19-associated hospitalizations among vaccinated and unvaccinated adults >=18 years - COVID-NET, 13 states, January 1 - July 24, 2021
SARS-CoV-2 antibody prevalence and determinants of six ethnic groups living in Amsterdam, the Netherlands: a population-based cross-sectional study, June-October 2020