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Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
Emerging chlamydial infections
Daniele Corsaro1, Danielle Venditti
1Retrovirology Laboratory, Centre Hospitalier de Luxembourg, Luxembourg.
Abstract:
Chlamydiae are important intracellular bacterial pathogens of vertebrates. In the last years, novel members of this group have been discovered: Parachlamydia acanthamoebae and Simkania negevensis seems to be emerging respiratory human pathogens, while Waddlia chondrophila might be a new agent of bovine abortion. Various species have been showed to infect also the herpetofauna and fishes, and some novel chlamydiae are endosymbionts of arthropods. In addition, molecular studies evidenced a huge diversity of chlamydiae from both environmental and clinical samples, most of such a diversity could be formed by novel lineages of chlamydiae. Experimental studies showed that free-living amoebae may support multiplication of various chlamydiae, then could play an important role as reservoir/vector of chlamydial infections. Here we reviewed literature data concerning chlamydial infections, with a particular emphasis on the novely described chlamydial organisms.
Insights
Novel chlamydiae, including Parachlamydia acanthamoebae and Simkania negevensis, are emerging pathogens in humans and animals. Free-living amoebae may act as reservoirs for these diverse intracellular bacteria.
Area of Science:
- Microbiology
- Bacteriology
- Pathogen Discovery
Background:
- Chlamydiae are significant intracellular bacterial pathogens affecting vertebrates.
- Recent discoveries include novel chlamydiae with potential roles in human and animal diseases.
Purpose of the Study:
- To review literature on chlamydial infections.
- To emphasize newly described chlamydial organisms and their impact.
Main Methods:
- Literature review of existing data on chlamydial infections.
- Focus on molecular studies and experimental findings.
Main Results:
- Novel chlamydiae like Parachlamydia acanthamoebae and Simkania negevensis are emerging respiratory pathogens.
- Waddlia chondrophila is a potential cause of bovine abortion.
- Chlamydiae infect diverse hosts including reptiles, fish, and arthropods.
- Free-living amoebae serve as reservoirs and vectors for chlamydial multiplication.
Conclusions:
- A vast diversity of chlamydiae exists, with many novel lineages identified.
- Emerging chlamydial pathogens pose risks to human and animal health.
- Understanding chlamydial reservoirs, like amoebae, is crucial for infection control.
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