Chlamydia psittaci infection occurs world-wide. The organism was originally thought to be the main cause of upper respiratory tract disease in the cat, which at that time was called 'feline pneumonitis'. Subsequently it became apparent that feline herpesvirus and feline calicivirus are the two main causes of respiratory disease: C. psittaci was found to be a conjunctival rather than a respiratory pathogen, and, despite the original name of feline pneumonitis, pneumonia does not generally occur.
PATHOGENESIS AND CLINICAL SIGNS
PREVENTION AND CONTROL
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