Coronavirus disease 2019 (COVID-19)
Metaphor
2019-20 coronavirus outbreak
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Set (abstract data type)
Limit (mathematics)
Pandemic
Sociology
Virology
Medicine
Computer science
Philosophy
Linguistics
Mathematics
Pathology
Infectious disease (medical specialty)
Disease
Mathematical analysis
Programming language
Outbreak
