Pandemic
Coronavirus disease 2019 (COVID-19)
Context (archaeology)
Immunity
Immune system
Transmission (telecommunications)
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
2019-20 coronavirus outbreak
Immunology
Medicine
Biology
Virology
Disease
Pathology
Infectious disease (medical specialty)
Computer science
Paleontology
Telecommunications
Outbreak
