Chlamydia pneumoniae
Species of bacterium / From Wikipedia, the free encyclopedia
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Chlamydia pneumoniae[1] is a species of Chlamydia, an obligate intracellular bacterium[2] that infects humans and is a major cause of pneumonia. It was known as the Taiwan acute respiratory agent (TWAR) from the names of the two original isolates – Taiwan (TW-183) and an acute respiratory isolate designated AR-39.[3] Briefly, it was known as Chlamydophila pneumoniae, and that name is used as an alternate in some sources.[4] In some cases, to avoid confusion, both names are given.[5]
Chlamydia pneumoniae | |
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Scientific classification | |
Domain: | Bacteria |
Phylum: | Chlamydiota |
Class: | Chlamydiia |
Order: | Chlamydiales |
Family: | Chlamydiaceae |
Genus: | Chlamydia |
Species: | C. pneumoniae |
Binomial name | |
Chlamydia pneumoniae Grayston et al. 1989 | |
Synonyms | |
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Chlamydia pneumoniae has a complex life cycle and must infect another cell to reproduce; thus, it is classified as an obligate intracellular pathogen. The full genome sequence for C. pneumoniae was published in 1999.[6] It also infects and causes disease in koalas, emerald tree boas (Corallus caninus), iguanas, chameleons, frogs, and turtles.
The first known case of infection with C. pneumoniae was a case of conjunctivitis in Taiwan in 1950. There are no known cases of C. pneumoniae in human history before 1950. This atypical bacterium commonly causes pharyngitis, bronchitis, coronary artery disease and atypical pneumonia in addition to several other possible diseases.[7][8]