Infectious diseases: reports of a demise were greatly exaggerated.
D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy / Q000453:epidemiology; D001424:Bacterial Infections / Q000453:epidemiology*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology / Q000821:virology; D014777:Virus Diseases / Q000453:epidemiology*