A zoonotic infectious disease (of birds) caused by a bacterium called Chlamydia psittaci, it can be transmitted to humans and other animals. When carried by any species of bird belonging to the Psittacidae family (parrots), it is called psittacosis or parrot fever.
User Defined Definitions
"an atypical pneumonia caused by a rickettsia microorganism and transmitted to humans from infected birds"