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Chlamydia psittaci

microbiology

Quick Summary

Chlamydia psittaci is a bacterial parasite that causes psittacosis, an infectious disease found worldwide and transmitted to humans from birds. This infection can occur in about 70 different bird species, with common sources of human infection including pet birds like parrots and parakeets, as well as ducks, geese, and turkeys.1

Humans typically contract psittacosis by inhaling dust contaminated with infected bird droppings. The bacteria then multiply in the blood and tissues, potentially causing high fever and pneumonia in humans. Other symptoms may include chills, weakness, aches, and an increased respiratory rate. While historically the disease had a significant fatality rate, modern antibiotics like penicillin and tetracycline have drastically reduced mortality.1

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