Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Neutralization of SARS-CoV-2 Omicron pseudovirus by BNT162b2 vaccine-elicited human sera
Greater Covid-19 Severity and Mortality in Hospitalized Patients in Second (Delta Variant) Wave Compared to the First: Single Centre Prospective Study in India
Systematic Review: Recommendations for Rehabilitation in ASD and ID from Clinical Practice Guidelines
Coping with COVID-19 Stressors: Adverse and Protective Factors Responding to Emotions in a Chinese Sample
Prospective evaluation of ID NOW COVID-19 assay used as point-of-care test in an Emergency Department
Factors Influencing Health Impacts among Smartphone Users in New Normal Situation: A Case Study among University Students in Thailand
Recommendations for clinical interpretation of variants found in non-coding regions of the genome
COVID-19 collateral damage: psychological distress and behavioral changes among older adults during the first outbreak in Stockholm, Sweden
A Pattern Recognition Diagnostic Model to Restore and Emulate Knee Mobility
What We Learned from COVID-19: From endotheliitis to treatment
Indoor Air Quality Intervention in Schools; Effectiveness of a Portable HEPA Filter Deployment in Five Schools Impacted by Roadway and Aircraft Pollution Sources
Reduction of exposure to simulated respiratory aerosols using ventilation, physical distancing, and universal masking
The natural history of TB disease - a synthesis of data to quantify progression and regression across the spectrum
Diversity in antibody titer at an average of 87 days after the second dose of BNT162b2 mRNA coronavirus disease 2019 vaccine: data from a predominantly elderly population in a practice in Tokyo
Phylodynamics reveals the role of human travel and contact tracing in controlling the first wave of COVID-19 in four island nations
Estimating the COVID-19 Prevalence in Spain with Indirect Reporting via Open Surveys
A systematic review of persistent symptoms and residual abnormal functioning following acute COVID-19: Ongoing symptomatic phase vs. post-COVID-19 syndrome
Epidemiological profile of patients with stage 5 chronic kidney disease on dialysis with Covid 19 infection in a Public Hospital-Peru
Limited diagnostic accuracy of smartphone-based digital biomarkers for Parkinson's disease in a remotely-administered setting
Time needed to perform intermittent catheterization in adults with spinal cord injury: A pilot randomized controlled cross-over study
Effects of Diet on the Microbiome and Serum Metabolome of South Asian Infants at 1 Year
Management of conductive deafness from Otitis Media with Effusion (known as glue ear) in children using bone conduction headsets when grommet operations were unavailable during COVID-19.
Seroprevalence of SARS-CoV-2 during pregnancy and associated outcomes: results from an ongoing prospective cohort study, New York City
Seroprevalence of anti-SARS-CoV-2 antibodies among school and daycare children and personnel: Protocol for a cohort study in Montreal, Canada
Emergence and Spread of the SARS-CoV-2 Variant of Concern Delta Across Different Brazilian Regions
Exploring selection bias in COVID-19 research: Simulations and prospective analyses of two UK cohort studies