What is the infectious disease commonly known as parrot fever caused by?

Parrot fever, also known as psittacosis, is an infectious disease primarily caused by the bacterium Chlamydia psittaci. This pathogen is typically associated with birds, particularly parrots, which can transmit the infection to humans through respiratory droplets or by handling infected birds. Understanding that parrot fever is linked to a bacterial origin highlights the significance of proper hygiene and handling practices around birds to mitigate the risks of transmission. Other potential options such as viruses, fungi, and prions are distinct classes of pathogens that do not cause parrot fever or are associated with different diseases, emphasizing the specificity of Chlamydia psittaci as the causative agent in this case.