Psittacosis (Chlamydiosis)
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About this condition
A respiratory infection in parrots and parakeets caused by the bacterium Chlamydia psittaci. It is a zoonotic disease that can be transmitted to humans. If a pet bird is infected, consult a bird-specialist veterinarian promptly; owners experiencing symptoms should also see a physician.
Common symptoms
- Lethargy and fluffed feathers
- Eye discharge, nasal discharge, and sneezing
- Labored or rapid breathing
- Green or yellow diarrhea
- Loss of appetite and weight loss
Common causes
- Infection with the bacterium Chlamydia psittaci
- Contact with infected birds or exposure to their feces and secretions
- Introduction of imported or newly acquired birds carrying the pathogen
- Activation of latent infection due to stress or weakened immunity
Prevention (husbandry & daily care)
Quarantine newly acquired birds for at least 30 to 45 days and arrange fecal or nasal discharge PCR testing. Clean and disinfect cages and equipment regularly; wear a mask and ensure adequate ventilation when cleaning droppings. When keeping multiple birds, use separate equipment for each individual and observe each bird daily to help prevent the spread of infection. Because psittacosis is a zoonotic disease that can infect humans, owners who develop fever, cough, or fatigue should consult a physician and mention that they keep birds.
Related species guide
→ Browse the species guide for this animalWhen to see a vet
See a vet as soon as possibleWhat treatment does a vet provide?
At a bird-specialist veterinary clinic, the infection is confirmed through PCR testing, blood work, and X-rays, and the bird's overall condition is assessed. Once infection is confirmed, supportive care and monitoring are provided based on the severity of symptoms. Because psittacosis is a zoonotic disease, owners of infected birds should monitor their own health and consult a physician if they experience any symptoms, informing the doctor that they keep birds.
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