Social distance
Coronavirus disease 2019 (COVID-19)
Psychological intervention
Distancing
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Herd immunity
2019-20 coronavirus outbreak
Epidemic model
Risk of infection
Immunity
Medicine
Psychology
Virology
Environmental health
Immunology
Immune system
Biology
Infectious disease (medical specialty)
Vaccination
Population
Psychiatry
Genetics
Disease
Pathology
Outbreak