Contact tracing
Social distance
Tracing
Coronavirus disease 2019 (COVID-19)
Epidemic model
Computer science
Variable (mathematics)
Set (abstract data type)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Simple (philosophy)
Geography
Sociology
Demography
Mathematics
Medicine
Infectious disease (medical specialty)
Epistemology
Mathematical analysis
Population
Philosophy
Disease
Pathology
Programming language
Operating system
