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Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
14:04

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria

Published on: May 8, 2013

Antimicrobial Resistance and Molecular Characterization of Staphylococcus aureus Causing Childhood Pneumonia in

Zhen Song1, Fei-Fei Gu2, Xiao-Kui Guo3

  • 1Faculty of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine Shanghai, China.

Frontiers in Microbiology
|April 6, 2017
PubMed

Insights

Methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-susceptible Staphylococcus aureus (MSSA) are significant causes of childhood pneumonia in Shanghai. The ST59-SCCmecIV-t172/t437 clone is identified as the most prevalent epidemic strain.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pediatrics

Background:

  • Staphylococcus aureus, including methicillin-resistant strains (MRSA), is a primary cause of pediatric pneumonia.
  • Understanding the molecular epidemiology of S. aureus in children with pneumonia is crucial for effective treatment and control.

Purpose of the Study:

  • To determine the prevalence and molecular characteristics of S. aureus isolates from children with pneumonia in Shanghai, China.
  • To identify dominant clones and antimicrobial resistance patterns.

Main Methods:

  • A study of 107 hospitalized children with S. aureus pneumonia was conducted.
  • Isolates were analyzed for antimicrobial susceptibility, agr typing, toxin genes, MLST, spa, and SCCmec typing.

Main Results:

  • The study identified 54.2% MSSA and 45.8% MRSA isolates.
  • High resistance rates were observed for erythromycin, fosfomycin-trometamol, and clindamycin.
  • The ST59-SCCmecIV-t172/t437 clone was the most common epidemic strain, particularly among MRSA isolates.

Conclusions:

  • The ST59-SCCmecIV-t172/t437 clone poses a significant public health concern for pediatric pneumonia in Shanghai.
  • Continued surveillance of S. aureus molecular epidemiology and resistance patterns is essential.
Keywords:
MRSAStaphylococcus aureusantimicrobial resistancechildhood pneumoniamolecular characterization

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