Chapter 101: Chlamydia trachomatis and Chlamydia psittaci
MICROBIOLOGY
- Chlamydiae are obligate intracellular bacteria, possess both DNA and RNA (a characteristic that distinguishes them from viruses), and have a cell wall similar to that of gram-negative bacteria.
- These organisms have a complex reproductive cycle and exist in two forms.
- The elementary body (the infective form) is adapted for extracellular survival, while the reticulate body is adapted for intracellular survival and multiplication.
- Within 18–24 h after infection of the cell, reticulate bodies have replicated and begun to condense into elementary bodies that are released to infect other cells or people.
- Three chlamydial species infect humans: Chlamydia trachomatis, C. psittaci, and C. pneumoniae.
- CF tests and enzyme immunoassays that detect lipopolysaccharide identify chlamydiae only to the genus level.
- The microimmunofluorescence (MIF) test can differentiate among the three species.
- For a discussion of C. pneumoniae, see Chap. 100: Mycoplasma pneumoniae, Legionella Species, and Chlamydia pneumoniae.
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Citation
Kasper, Dennis L., et al., editors. "Chapter 101: Chlamydia Trachomatis and Chlamydia Psittaci." Harrison's Manual of Medicine, 20th ed., McGraw Hill Inc., 2020. harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623698/all/Chapter_101:_Chlamydia_trachomatis_and_Chlamydia_psittaci.
Chapter 101: Chlamydia trachomatis and Chlamydia psittaci. In: Kasper DLD, Fauci ASA, Hauser SLS, et al, eds. Harrison's Manual of Medicine. McGraw Hill Inc.; 2020. https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623698/all/Chapter_101:_Chlamydia_trachomatis_and_Chlamydia_psittaci. Accessed October 10, 2024.
Chapter 101: Chlamydia trachomatis and Chlamydia psittaci. (2020). In Kasper, D. L., Fauci, A. S., Hauser, S. L., Longo, D. L., Jameson, J. L., & Loscalzo, J. (Eds.), Harrison's Manual of Medicine (20th ed.). McGraw Hill Inc.. https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623698/all/Chapter_101:_Chlamydia_trachomatis_and_Chlamydia_psittaci
Chapter 101: Chlamydia Trachomatis and Chlamydia Psittaci [Internet]. In: Kasper DLD, Fauci ASA, Hauser SLS, Longo DLD, Jameson JLJ, Loscalzo JJ, editors. Harrison's Manual of Medicine. McGraw Hill Inc.; 2020. [cited 2024 October 10]. Available from: https://harrisons.unboundmedicine.com/harrisons/view/Harrisons-Manual-of-Medicine/623698/all/Chapter_101:_Chlamydia_trachomatis_and_Chlamydia_psittaci.
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