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Prevalence of methicillin-resistant Staphylococcus aureus carriers in dental care staff: A systematic review and

Juana Patricia Sánchez-Villamil1, Víctor Alfonso Morales-Peña2, Juan Felipe Flórez-Joya2

  • 1Departamento de Biología, Facultad de Ciencias, Universidad Antonio Nariño, Bucaramanga, Colombia.

Biomedica : Revista Del Instituto Nacional De Salud
|July 7, 2026
PubMed
Summary

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This study found a low prevalence of methicillin-resistant Staphylococcus aureus (MRSA) nasal carriage in dental personnel, at 2.28%. Continued surveillance is crucial for monitoring MRSA transmission in healthcare settings.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Public Health

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) is a significant hospital and community-acquired pathogen.
  • While MRSA carriage in medical and nursing staff is well-documented, data on dental personnel is limited.

Purpose of the Study:

  • To estimate the prevalence of asymptomatic MRSA carriage among dental professionals.
  • To synthesize existing evidence on MRSA nasal carriage in the dental workforce.

Main Methods:

  • Systematic review and meta-analysis of cross-sectional studies.
  • Searched PubMed, ScienceDirect, Scopus, BVS, and Google Scholar up to December 2024.
  • Assessed risk of bias using the Joanna Briggs Institute tool; pooled prevalence calculated using random-effects model.
Keywords:
Staphylococcus aureus resistente a meticilinametaanálisisodontologíaportador sanoprevalencia

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Main Results:

  • Included 17 studies for systematic review, 6 for meta-analysis, totaling 1256 participants.
  • Overall prevalence of nasal MRSA in dental personnel was 2.28% (95% CI: 0.78-6.4).
  • Prevalence varied by role: dentists (3.63%), dental assistants (1.45%), and students (2.0%), with no significant differences.

Conclusions:

  • Studies on MRSA carriage in dental personnel are scarce and lack population representativeness.
  • Despite low prevalence, rigorous surveillance of all healthcare providers is essential for epidemiological monitoring.
  • Monitoring aids in understanding transmission dynamics and predisposing risk factors.