Clinical DescriptionAn illness characterized by fever, chills, headache, photophobia, lower or upper respiratory disease, and myalgia
Laboratory Criteria For Diagnosis
- Isolation of Chlamydia psittaci from a clinical specimen, OR
- Fourfold or greater increase in psittacosis complement-fixing (CF) antibody titer (greater than or equal to 32) between two serum specimens obtained greater than or equal to 2 weeks apart and studied at the same laboratory
ProbableProbable A clinically compatible illness that is epidemiologically linked to a confirmed case, or with supportive serology (i.e., a psittacosis CF titer of greater than or equal to 32 in one or more serum specimens obtained after onset of symptoms)
ConfirmedA clinically compatible illness that is laboratory confirmed
CommentsThe serologic findings noted above may also occur as a result of infection with Chlamydia trachomatis or Chlamydia pneumoniae.
1. Mitchell, S.L., Wolff, B.J., Thacker, W.L., Ciembor, P.G., Gregory, C.R., Everett, K.D., Ritchie, B.W., & Winchell, J.M. (2009). Genotyping of Chlamydophila psittaci by real-time PCR and high-resolution melt analysis. J Clin Microbiol, 47(1),175-181.