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Mycoplasma pneumoniae in children with pneumonia at Mbagathi District Hospital, Nairobi

C C Bii1, H Yamaguchi, M Kai

  • 1Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya.

Abstract

Insights

Mycoplasma pneumoniae was detected in 33.7% of children under five with pneumonia using PCR. This atypical pathogen was more common in younger children and often co-occurred with other respiratory infections.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Microbiology

Background:

  • Pneumonia is a leading cause of mortality in children under five.
  • The role of atypical pathogens, such as Mycoplasma pneumoniae, in pediatric pneumonia requires further elucidation.
  • Understanding the prevalence of specific pathogens is crucial for effective treatment strategies.

Purpose of the Study:

  • To determine the prevalence of Mycoplasma pneumoniae in nasopharyngeal aspirates of children under five years of age suffering from pneumonia.
  • To investigate the co-occurrence of M. pneumoniae with other common acute respiratory infectious (ARI) pathogens.
  • To explore the relationship between M. pneumoniae detection and clinical outcomes.

Main Methods:

  • A cross-sectional survey was conducted.
  • Polymerase Chain Reaction (PCR) was used to detect M. pneumoniae targeting adhesion protein and 16S rRNA genes.
  • Serological tests (antibody detection) and microbiological investigations for common ARI pathogens were also performed.

Main Results:

  • Mycoplasma pneumoniae was detected in 33.7% of cases via PCR, significantly higher than serological detection (4.1%).
  • M. pneumoniae was detected alone in 25% of cases and concurrently with other ARI pathogens in 75%.
  • Prevalence was higher in children aged six months to three years, with seasonal peaks in May and September, but no correlation with pneumonia severity.

Conclusions:

  • Mycoplasma pneumoniae is a prevalent pathogen in pediatric pneumonia in the studied population.
  • The high rate of co-detection with other ARI pathogens suggests complex etiologies.
  • Further research is needed to establish the clinical significance of atypical pathogens in Kenyan respiratory infections.

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