Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: SARS-CoV-2 vaccine breakthrough infections are asymptomatic or mildly symptomatic and are infrequently transmitted.
Burden of SARS-CoV-2 and protection from symptomatic second infection in children
Deprivation and Early Involuntary Retirement: Area-Level Analysis across English Local Authorities
Inflight Transmission of COVID-19 Based on Aerosol Dispersion Data
Forecasts of weekly incident and cumulative COVID-19 mortality in the United States: A comparison of combining methods
The Reliability and Validity of the Hebrew Patient Health Questionnaire (PHQ-9) in the General Population
Assessment of Out of Pocket Expenditure and associated factors for availing COVID-19 vaccination by the beneficiaries in Bengaluru: South India
Mortality in hemodialysis: Synchrony of biomarker variability indicates a critical transition
The Relationship between Chronological Age, Dental Age, and Salivary Alkaline Phosphatase in Indonesian Children Aged 8-14 Years: A Cross-Sectional Study
Extending upon: What effect might border screening have on preventing importation of COVID-19 compared with other infections? - Considering the additional effect of post-arrival isolation
Depression and anxiety during 2019 coronavirus disease pandemic in Saudi Arabia: a cross-sectional study
Systems Leadership: how Chief Executives manage tension between organisation and system pressures
Asymptomatic SARS-CoV-2 infection by age: A systematic review and meta-analysis
Differentials and predictors of hospitalization among the elderly people in India: Evidence from 75th round of National Sample Survey (2017-18)
Assessment of the similarities and differences of the COVID-19 second surges in Europe and the Northeast United States
A nighttime telemedicine and medication delivery service to avert pediatric emergencies: An exploratory cost-effectiveness analysis
A Novel Abnormality Annotation Database for COVID-19 Affected Frontal Lung X-rays
Pregnancy, fertility concerns, and fertility preservation procedures in French breast cancer survivors in the FEERIC national study (on behalf of the Seintinelles research network).
cfTrack: Exome-wide mutation analysis of cell-free DNA to simultaneously monitor the full spectrum of cancer treatment outcomes: MRD, recurrence, and evolution
The seasonality of cholera in sub-Saharan Africa
Large university with high COVID-19 incidence did not increase risk to non-student population
Food intake patterns, social determinants and emotions during COVID-19 confinement: an online survey among adults in Panama.
A Genetic Model for Central Chondrosarcoma Evolution Correlates with Patient Outcome
Neurological, neuropsychiatric and psychiatric symptoms during COVID-19 infection and after recovery: a systematic review of observational studies
A BIBLIOMETRIC ANALYSIS OF RHEUMATOLOGY AND COVID-19 RESEARCHES
Lost in time: temporal monitoring elicits clinical decrements in sustained attention post-stroke