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Psittacosis is a disease caused by a bacterium called Chlamydophila psittaci (formerly Chlamydia psittaci). Each year 50-100 confirmed cases are reported in the United States. Many more cases may occur that are not correctly diagnosed or reported.

Disease Reporting

Health care providers (but not clinical laboratories) are required to report cases and suspect cases of psittacosis to local health departments within one working day of identification.

Disease reporting form (pdf) for health-care practitioners

See our disease reporting page for information on how to report and for telephone numbers of local health departments.

For county health departments:

Psittacosis: Investigative guidelines (pdf) (2/95)
Psittacosis: Case report form (pdf)

See Also
The CDC fact sheet answers some common questions about psittacosis.
American Veterinary Medical Association:
2003 Compendium of measures to control chlamydophila psittaci infection among humans (psittacosis) and pet birds