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[Respiratory tract infections due to Mycoplasma pneumoniae in elementary school children; a case report]
Insights
A 1987 epidemic of respiratory infections in Hiroshima elementary students revealed Mycoplasma pneumoniae as a key pathogen. SP-4 broth offered the highest isolation rate for this bacteria.
Area of Science:
- Pediatric Infectious Diseases
- Microbiology
- Epidemiology
Context:
- An outbreak of respiratory tract infections affected elementary school children in Hiroshima Prefecture during the summer of 1987.
- 59% of enrolled children were diagnosed with respiratory illnesses, with 10 requiring hospitalization for pneumonia.
Purpose:
- To identify the causative agent of the respiratory illness outbreak.
- To evaluate diagnostic methods for Mycoplasma pneumoniae infections.
- To determine the most effective culture medium for M. pneumoniae isolation.
Summary:
- Mycoplasma pneumoniae infection was confirmed in 77% of 31 examined patients through throat swabs and serological studies.
- Common symptoms included upper respiratory tract infections with cough and fever; pneumonia and myringitis were also observed.
- SP-4 broth demonstrated the highest isolation rate for M. pneumoniae compared to PPLO-broth and diphasic medium.
Impact:
- Highlights the significant role of Mycoplasma pneumoniae in pediatric respiratory epidemics.
- Provides evidence for the efficacy of SP-4 broth in M. pneumoniae detection.
- Informs public health strategies for managing similar outbreaks in school settings.
Abstract:
Epidemic respiratory tract infections occurred among elementary school children in Hiroshima prefecture during June, July and August, 1987. Forty (59%) of 68 children who were enrolled in an elementary school were confirmed to have respiratory diseases during this period, ten of whom were hospitalized with diagnoses of pneumonias. Diagnoses of M. pneumoniae infection were made from secretions obtained by throat swabs, and by serological studies of blood specimens. Twenty-four (77%) of the 31 patients examined were confirmed to have M. pneumoniae infections. Twenty-three of them had upper respiratory tract infections with cough and fever; two had pneumonia, one with myringitis. PPLO-broth, SP-4 broth and diphasic medium were used for M. pneumoniae isolation. Among these, SP-4 broth proved to have the highest isolation rate.