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Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
Chlamydia trachomatis infection influences the clinical course of acute bronchiolitis
Şule Gökçe1, Zafer Kurugöl2, Candan Çiçek3
11 Doctor, Ege University Faculty of Medicine, Department of Pediatrics, General Pediatrics Unit, Ege University, Izmir, Turkey.
Insights
Chlamydia trachomatis infection in infants with acute bronchiolitis is common and often co-occurs with viral infections. This coinfection is associated with more severe cases of infant bronchiolitis.
Area of Science:
- Pediatrics
- Infectious Diseases
- Respiratory Medicine
Background:
- Acute bronchiolitis is a common respiratory infection in infants.
- Chlamydia trachomatis (C. trachomatis) is a potential pathogen in young children.
- The impact of C. trachomatis on the clinical course of acute bronchiolitis is not well understood.
Purpose of the Study:
- To determine the frequency of C. trachomatis infection in infants hospitalized with acute bronchiolitis.
- To investigate whether C. trachomatis infection influences the clinical severity and outcome of acute bronchiolitis.
Main Methods:
- A cohort of 92 infants under 6 months old admitted with acute bronchiolitis was studied.
- Nasal smears were collected for C. trachomatis detection using cell culture.
- Respiratory viruses were identified using real-time polymerase chain reaction (RT-PCR).
- Clinical data were compared between C. trachomatis-positive and -negative infants.
Main Results:
- C. trachomatis was detected in 22.8% of infants with acute bronchiolitis.
- C. trachomatis often presented as a coinfection with respiratory viruses.
- Infants infected with C. trachomatis showed a trend towards more severe bronchiolitis.
- Clinical outcomes were significantly affected in infants with C. trachomatis coinfection.
Conclusions:
- C. trachomatis is a relevant pathogen in infants with acute bronchiolitis, frequently co-infecting with viruses.
- C. trachomatis coinfection is associated with increased severity of acute bronchiolitis in infants.
- Early detection and consideration of C. trachomatis may be important for managing severe infant bronchiolitis.
Abstract:
The frequency of Chlamydia trachomatis infection among young infants admitted with acute bronchiolitis was analysed to determine whether the former affects the clinical course of the latter. A total of 92 infants aged <6 months admitted with acute bronchiolitis were tested for C. trachomatis by a cell culture technique, obtaining nasal smears from each infant's nostrils. A second nasal sampling was taken for respiratory viruses from the study group and tested with real-time polymerase chain reaction. Clinical characteristics of C. trachomatis-positive and -negative cases were compared. C. trachomatis was detected in 22.8% of the infants, mostly as coinfection with respiratory viral agents. Infection with C. trachomatis affected the clinical outcome in acute bronchiolitis and such infants tended to have severe bronchiolitis.
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