Prevalence and Molecular Characterization of Staphylococcus aureus and Methicillin-resistant S. aureus on Children's

Dipendra Thapaliya1, Jhalka Kadariya1, Mike Capuano1

  • 1From the Kent State University, College of Public Health, Kent, OH.

Abstract

Insights

Staphylococcus aureus and MRSA were found on playground surfaces in Ohio, posing a public health risk. This highlights the need for strategies to prevent children

Area of Science:

  • Environmental microbiology
  • Public health microbiology
  • Molecular epidemiology

Background:

  • Staphylococcus aureus, including methicillin-resistant strains (MRSA), is a significant public health concern.
  • Limited data exists on S. aureus and MRSA prevalence on children's playground environmental surfaces.
  • This study addresses the knowledge gap regarding S. aureus and MRSA epidemiology in playground settings.

Purpose of the Study:

  • To investigate the prevalence of S. aureus and MRSA on environmental surfaces in children's playgrounds.
  • To determine the molecular epidemiology of S. aureus and MRSA isolates from these environments.
  • To assess antibiotic resistance patterns among S. aureus isolates found in playgrounds.

Main Methods:

  • Collected 280 environmental samples from 10 playgrounds in northeast Ohio.
  • Utilized microbiology methods for S. aureus isolation and spa typing for molecular characterization.
  • Employed PCR for virulence gene detection (Panton-Valentine leukocidin, mec A) and Vitek-2 for antibiotic susceptibility testing.

Main Results:

  • S. aureus and MRSA prevalence rates were 31.8% and 3.9%, respectively.
  • Identified 43 spa types, with t189 being most common; notable strains included hospital-associated (t002), community-associated (t008), and livestock-associated (t571).
  • Observed oxacillin resistance in 11.3% and multi-drug resistance in 25.7% of S. aureus isolates.

Conclusions:

  • Playground environmental surfaces in northeast Ohio are contaminated with S. aureus and MRSA.
  • Findings underscore the potential risk to children from environmental MRSA exposure.
  • Emphasizes the necessity for developing and implementing effective prevention strategies.

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