- A doctor in Europe first described psittacosis as a human disease in 1879.
- A large pandemic of psittacosis in 1929 and 1930 affected about 800 people around the world, including people in the United States.
- Chlamydia psittaci bacteria can infect people and cause psittacosis. Up until recently, scientists called the bacteria Chlamydophila psittaci.
- Some people refer to psittacosis as parrot disease or parrot fever, but the bacteria can infect many types of birds.
- Since 2010, there have typically been fewer than 10 cases reported in the United States each year. However, in 2018, a multistate psittacosis outbreak among poultry plant workers had 13 laboratory confirmed cases.
- Harris RL, William TW Jr. Contribution to the question of pneumotyphus: A discussion of the original article by J. Ritter in 1880external icon. Rev Infect Dis. 1985;7(1):119–22.
- Summary of notifiable infectious diseases and conditions. MMWR Morb Mortal Wkly Rep. Accessed July 9, 2019.
- Ramsay EC. The psittacosis outbreak of 1929–1930external icon. J Avian Med Surg. 2003;17(4):235–7.
Page last reviewed: August 22, 2019
Content source: National Center for Immunization and Respiratory Diseases