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Related Experiment Video

Updated: Mar 14, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
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Point-of-care universal screening for meticillin-resistant Staphylococcus aureus: a cluster-randomized cross-over

P J Wu1, D Jeyaratnam2, O Tosas3

  • 1Department of Infection, Guy's and St Thomas' NHS Foundation Trust, London, UK.

The Journal of Hospital Infection
|September 24, 2016
PubMed
Summary

Rapid point-of-care screening (POCS) for methicillin-resistant Staphylococcus aureus (MRSA) significantly speeds up results but does not reduce patient acquisition rates in hospitals. High infection control compliance and low MRSA carriage mean POCS offers no additional benefit over traditional methods.

Keywords:
Meticillin-resistant Staphylococcus aureusPoint of careRapid screeningScreening

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Area of Science:

  • Infectious Diseases
  • Clinical Microbiology
  • Hospital Epidemiology

Background:

  • Meticillin-resistant Staphylococcus aureus (MRSA) is a common healthcare-associated pathogen.
  • Asymptomatic carriers are significant sources of MRSA transmission.
  • Admission screening aims to identify potential MRSA carriers.

Purpose of the Study:

  • To compare the effectiveness of rapid point-of-care screening (POCS) versus conventional culture methods for MRSA detection.
  • To determine if POCS at hospital admission reduces MRSA acquisition rates.

Main Methods:

  • A cluster-randomized cross-over trial involving 10,017 patients across four hospital wards.
  • Comparison of polymerase chain reaction-based POCS with standard culture screening.
  • Patients screened on admission and discharge; MRSA acquisition rate was the primary outcome.

Main Results:

  • POCS drastically reduced MRSA result reporting time from 40.4 to 3.7 hours.
  • MRSA acquisition rates were similar between POCS (4.60/1000 days) and culture (5.39/1000 days) arms.
  • Adjusted incidence rate ratios showed no significant difference in MRSA acquisition.

Conclusions:

  • While POCS offers rapid results, it did not decrease MRSA acquisition rates compared to culture screening.
  • In settings with high infection control compliance and low MRSA prevalence, POCS provides no added benefit for early admission ward acquisition.