Psittacosis and ornithosis (see Avian Chlamydiosis)

Bacterial Diseases
More Information

Animals Involved

Psittacine birds (especially parakeets, cockatiels), pigeons, turkeys, ducks, geese, and other domestic or wild birds; mammalian strains of C psittaci also exist (zoonotic potential still undetermined)

Known Distributions


Probable Means of Spreading

Inhalation of respiratory secretions or dried guano

Clinical Manifestations in People

Influenza­like febrile illness with nonproductive cough that may progress to pneumonia; complications, including endocarditis, myocarditis, meningoencephalitis, hepatitis, glomerulonephritis, and other organ dysfunction; sepsis; some cases fatal if untreated, <1% with treatment

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