Chlamydophila psittaci: Difference between revisions

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==Overview==
==Overview==
Psittacosis is caused by the bacteria C. psittaci. Chlamydia is understood to be a Gram-negative bacterium belonging to the genus Chlamydia or Chlamydophila in the family of Chlamydiaceae  together with  Parachlamydiaceae, Waddliaceae and Simkaniaceae in the order Chlamydiales, class and phylum Chlamydiae. Chlamydiales are obligate intracellular infectious agents in eukaryotic cells characterized by a unique developmental replication cycle.
Psittacosis is caused by the organism Chlamydia psittaci. Chlamydia is understood to be a Gram-negative bacterium belonging to the genus Chlamydia or Chlamydophila in the family of Chlamydiaceae  together with  Parachlamydiaceae, Waddliaceae and Simkaniaceae in the order Chlamydiales, class and phylum Chlamydiae. Chlamydiales are obligate intracellular infectious agents in eukaryotic cells characterized by a unique developmental replication cycle.


==Causes==
==Causes==

Revision as of 13:31, 27 June 2017

Chlamydophila psittaci
Direct fluorescent antibody stain of a mouse brain impression smear showing C. psittaci.
Direct fluorescent antibody stain of a mouse brain impression smear showing C. psittaci.
Scientific classification
Kingdom: Bacteria
Phylum: Chlamydiae
Order: Chlamydiales
Family: Chlamydiaceae
Genus: Chlamydophila
Species: C. psittaci

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This page is about microbiologic aspects of the organism(s).  For clinical aspects of the disease, see psittacosis.

Overview

Psittacosis is caused by the organism Chlamydia psittaci. Chlamydia is understood to be a Gram-negative bacterium belonging to the genus Chlamydia or Chlamydophila in the family of Chlamydiaceae together with Parachlamydiaceae, Waddliaceae and Simkaniaceae in the order Chlamydiales, class and phylum Chlamydiae. Chlamydiales are obligate intracellular infectious agents in eukaryotic cells characterized by a unique developmental replication cycle.

Causes

At least 460 species from 30 bird orders;

  • Turkeys
  • Pheasants
  • Chickens,
  • Ostriches and penguins.
  • Migratory birds such as geese, may carry this pathogen.[1]
  • Mule ducks have also been associated with human disease through heavy shedding.

Most humans are infected from birds of the order psittaciformes, which includes budgerigars, cockatiels, cockatoos, and parrots. Although the ducks are asymptomatic, each bird order tends to be infected by a predominant genotype of C. psittaci.

References

  1. Dickx V, Kalmar ID, Tavernier P, Vanrompay D (2013). "Prevalence and genotype distribution of Chlamydia psittaci in feral Canada geese (Branta canadensis) in Belgium". Vector Borne Zoonotic Dis. 13 (6): 382–4. doi:10.1089/vbz.2012.1131. PMID 23654298.


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