International travel and infection.
D001424:Bacterial Infections / Q000209:etiology; D006506:Hepatitis A / Q000209:etiology; D006801:Humans; D007239:Infections / Q000209:etiology*; D008288:Malaria / Q000209:etiology; D014195:Travel; D014435:Typhoid Fever / Q000209:etiology; D014735:Vibrio Infections / Q000209:etiology