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Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
A new respiratory tract pathogen: Chlamydia pneumoniae strain TWAR
J T Grayston1, L A Campbell, C C Kuo
1Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Seattle 98195.
Abstract:
Chlamydia pneumoniae strain TWAR, the new third species of Chlamydia, is a common cause of pneumonia and other acute respiratory tract infections. About 10% of hospitalized and outpatient pneumonia cases have been associated with TWAR infection. TWAR is among the four or five most commonly identified causes of all pneumonia. Most TWAR infections are mild or asymptomatic, but occasionally severe pneumonia with death has been observed. Laboratory diagnosis is not generally available. Vigorous treatment with tetracycline or erythromycin is recommended. Both epidemic and endemic infections have been described in North America and the Nordic Countries. Population prevalence antibody studies suggest that TWAR infection is wide-spread throughout the world, that nearly everyone is infected and reinfected during their life-time, and that infection is common in all ages except those less than 5 years in temperate zone countries. The infection is transmitted from person to person, apparently with a long incubation period.
Insights
Chlamydia pneumoniae strain TWAR causes pneumonia and respiratory infections, affecting nearly everyone globally. While often mild, severe cases and transmission necessitate prompt diagnosis and treatment.
Area of Science:
- Infectious Diseases
- Respiratory Medicine
- Microbiology
Background:
- Chlamydia pneumoniae strain TWAR is a newly identified species of Chlamydia.
- It is a significant cause of pneumonia and acute respiratory tract infections.
Purpose of the Study:
- To summarize the epidemiology, clinical presentation, and management of Chlamydia pneumoniae strain TWAR infections.
- To highlight its global prevalence and impact on respiratory health.
Main Methods:
- Review of existing literature and epidemiological data on TWAR infections.
- Analysis of population prevalence antibody studies.
Main Results:
- TWAR strain accounts for approximately 10% of pneumonia cases.
- Infections are widespread globally, with most individuals experiencing reinfection throughout their lifetime.
- Common in all age groups except children under 5 in temperate regions.
Conclusions:
- Chlamydia pneumoniae strain TWAR is a major global cause of respiratory illness.
- Effective treatment involves tetracycline or erythromycin.
- Further research into diagnosis and prevention is warranted.
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