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==Description==

==Description==

Ornithosis (meaning "bird disase", from Greek ornithos "bird")  also called Psittacosis, Parrot Disease or Parrot Fever, is a serious human disease with mortality ranging from 1% when treated with antiobiotics, to 20% when untreated. The bacteria (Chlamydia psittaci) invade people by breathing-in an invisible dust from infected birds. Most of the infected birds carry the disease without becoming sick and without any visible symptoms, a few die within three weeks.

Ornithosis (meaning "bird disase", from Greek ornithos "bird")  also called Psittacosis, Parrot Disease or Parrot Fever, is a serious human disease with mortality ranging from 1% when treated with antibiotics, to 20% when untreated. The bacteria (Chlamydia psittaci) invade people by breathing-in an invisible dust from infected birds. Most of the infected birds carry the disease without becoming sick and without any visible symptoms, a few die within three weeks.

==Causes==

==Causes==