Aerosolized Hydrogen Peroxide May Counter MRSA Environmental Contamination
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September 18, 2007 (Chicago) — Aerosolized hydrogen peroxide demonstrates an excellent ability to neutralize methicillin-resistant Staphylococcus aureus (MRSA) environmental contamination, according to a new study. The neutralization appears to approach 100% and to last for weeks. It holds the promise of cost-effective infection control.
The key study, presented here yesterday at the 47th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy, was conducted at the Royal Hampshire County Hospital, Winchester, in the United Kingdom. In January 2007, a previously "clean" 28-bed surgical ward suffered an unexpected outbreak of MRSA in which 11 patients quickly became colonized.
Rotating sections of the ward were closed, and traditional decontamination cleaning took place. Moistened cotton swabs were used to gather samples from 29 standardized sites both before and after the hydrogen peroxide treatment and then at 1-week intervals for 4 weeks. Patients were screened at admission and discharge, and the staff was also screened; anyone found positive for MRSA was decolonized successfully. http://www.medscape.com