Birds and hazards to health.
D000818:Animals; D001424:Bacterial Infections / Q000453:epidemiology; D001715:Bird Diseases; D001717:Birds / Q000469:parasitology; D006801:Humans; D006967:Hypersensitivity; D007239:Infections / Q000453:epidemiology; D009181:Mycoses / Q000453:epidemiology; D011041:Poisoning / Q000453:epidemiology; D009956:Psittacosis / Q000453:epidemiology; D012282:Rickettsia Infections / Q000453:epidemiology; D012480:Salmonella Infections / Q000453:epidemiology; D014777:Virus Diseases / Q000453:epidemiology; D015047:Zoonoses