Pandemic
Influenza A virus subtype H5N1
Coronavirus disease 2019 (COVID-19)
Virology
2019-20 coronavirus outbreak
Medicine
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Environmental health
Human mortality from H5N1
Travel medicine
Medical emergency
Outbreak
Infectious disease (medical specialty)
Virus
Disease
Internal medicine
Psychiatry
