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Chlamydial infection in infants
1Department of Experimental Surgery and Research, Faculty of Medicine, Ege University, Izmir, Turkey.
Journal of Tropical Pediatrics
|August 1, 1996
Summary
Chlamydia trachomatis infection was investigated in infants with recurrent lower respiratory tract disease. The study found evidence of Chlamydia trachomatis in a significant portion of these infants, suggesting its role in infant respiratory illness.
Area of Science:
- Pediatrics
- Infectious Diseases
- Microbiology
Background:
- Recurrent lower respiratory tract disease in infants can have various causes.
- Chlamydia trachomatis is a known pathogen that can affect the respiratory system in neonates and infants.
Purpose of the Study:
- To investigate the prevalence of Chlamydia trachomatis infection in infants hospitalized with recurrent lower respiratory tract disease.
- To determine the association between Chlamydia trachomatis detection and specific clinical presentations or antibody responses.
Main Methods:
- Conjunctival and nasopharyngeal samples were collected from 51 infants (1 month-1 year old) with recurrent lower respiratory tract disease.
- Chlamydia trachomatis antigen was detected using direct fluorescence testing.
- Serum anti-chlamydial IgM antibodies were measured by enzyme immunoassay.
Main Results:
- Chlamydia trachomatis antigen was detected in 20 out of 51 infants.
- Anti-chlamydial IgM antibodies were found in 15 infants.
- Of the 20 antigen-positive infants, 16 had serum samples, and 12 of these showed IgM antibodies. Three antigen-negative infants also had antibodies.
Conclusions:
- Chlamydia trachomatis is a potential causative agent in infants presenting with recurrent lower respiratory tract disease.
- The presence of anti-chlamydial antibodies, regardless of antigen detection, suggests a significant role for C. trachomatis in pneumoniae.
- Infants with only antigen detection may represent superficial colonization or asymptomatic carriage.