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Updated: Jun 27, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
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Published on: May 8, 2013

Can the use of a rapid polymerase chain screening method decrease the incidence of nosocomial meticillin-resistant

M A Aldeyab1, M P Kearney, C M Hughes

  • 1Clinical and Practice Research Group, School of Pharmacy, Queen's University Belfast, BT9 7BL Belfast, Northern Ireland, UK.

The Journal of Hospital Infection
|November 28, 2008
PubMed
Summary

Rapid polymerase chain reaction (PCR) testing significantly cut MRSA detection times but did not reduce MRSA incidence in hospital wards. Faster results alone are insufficient to control MRSA spread.

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Area of Science:

  • Medical Microbiology
  • Infectious Disease Control
  • Clinical Diagnostics

Background:

  • Hospital-acquired infections, particularly meticillin-resistant Staphylococcus aureus (MRSA), pose significant challenges to patient safety.
  • Rapid diagnostic methods are crucial for timely intervention and control of MRSA transmission.

Purpose of the Study:

  • To compare the efficacy of rapid polymerase chain reaction (PCR) screening with standard culture for MRSA detection.
  • To evaluate the impact of rapid PCR on MRSA incidence in hospital settings.

Main Methods:

  • A comparative study involving two hospital wards over two four-month phases.
  • Patients were screened using rapid PCR in one ward and standard culture in the other, with methods switched in the second phase.
  • Audits of infection control practices were conducted to identify confounding factors.

Main Results:

  • Rapid PCR significantly reduced the time from sample collection to result reporting (47 to 21 hours).
  • No significant difference in MRSA incidence was observed between PCR and culture methods on the surgical ward.
  • An increase in MRSA detection was noted on the medical/cardiology ward during the PCR phase.

Conclusions:

  • Rapid PCR testing substantially decreases turnaround times for MRSA detection.
  • Reducing reporting time alone is not sufficient to effectively limit MRSA transmission in hospitals.
  • Further strategies are needed to complement rapid diagnostics for MRSA control.