Pandemic. Epidemic, Infectious disease, Plague of Athens, Antonine Plague, Plague of Justinian, Black Death, Third Pandemic, First cholera pandemic, Second cholera pandemic, Influenza pandemic, AIDS pandemic, Smallpox, Globalization and disease, Leprosy, Yellow fever, Viral hemorrhagic fever, Influenza A virus subtype H5N1, 2009 swine flu outbreak