Psittacosis is an infection. It is passed to humans from birds. It may cause flu-like symptoms. The infection can range from mild to severe.
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Psittacosis is caused by a type of bacteria. The bacteria is usually passed to people from a sick bird. It may be inhaled through the dust of dried bird droppings from the sick bird. It can also pass when a person touches his or her mouth to the beak of an infected bird.
The bacteria can pass from one person to another. This is rare.
Contact with a pet bird increases the risk of psittacosis.
Other things that raise the risk are:
Psittacosis may cause:
The doctor will ask about your symptoms and health history. A physical exam will be done.
A blood test can confirm the diagnosis. Other body fluids, such as sputum, may be tested. A chest x-ray may be done to check the lungs.
The goal of treatment is to clear the infection. Psittacosis is treated with antibiotics.
Sometimes severe breathing problems may happen. This is rare but may require a stay in the hospital. Oxygen will make breathing easier. IV antibiotics will also be given.
To reduce the risk of psittacosis:
AVMA—American Veterinary Medicine Association
Centers for Disease Control and Prevention
Canadian Veterinary Medical Association
Animal contact compendium 2017. National Association of State Public Health Veterinarians website. Available at: http://www.nasphv.org/Documents/AnimalContactCompendium2017.pdf. Accessed April 2, 2021.
Balsamo G, Maxted AM, et al. Compendium of measures to control chlamydia psittaci infection among humans (psittacosis) and pet birds (avian chlamydiosis), 2017. J Avian Med Surg. 2017;31(3):262-282.
Psittacosis. Canadian Centre for Occupational Health and Safety website. Available at: http://www.ccohs.ca/oshanswers/diseases/psittacosis.html. Accessed April 2, 2021.
Psittacosis. Centers for Disease Control and Prevention website. Available at: https://www.cdc.gov/pneumonia/atypical/psittacosis.html. Accessed April 2, 2021.
Psittacosis. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/psittacosis. Accessed April 2, 2021.
Last reviewed December 2020 by EBSCO Medical Review Board David L. Horn, MD, FACP Last Updated: 4/2/2021