• Robert Brown, Julianne Minnon, Stephanie Schneider, and James Vaughn.
• University of New England, College of Osteopathic Medicine, Biddeford, Maine 04005, USA. rbrown962@yahoo.com
• Prehosp Emerg Care. 2010 Apr 1; 14 (2): 176-81.

ObjectiveTo determine whether methicillin-resistant Staphylococcus aureus (MRSA) could be found in ambulances in a predominantly rural state.MethodsSamples were obtained from specified areas in 51 ambulances in southern Maine. These samples were tested on mannitol salt agar containing 4 microg/mL oxacillin. Resulting colonies were gram-stained and tested for the presence of catalase and coagulase.ResultsOf the 51 ambulances tested, 25 (49%) had at least one area positive for MRSA contamination.ConclusionsA significant number of ambulances operating in southern Maine have MRSA contamination, and ambulances may represent an important reservoir for the transmission of potentially serious infections to patients and EMS personnel. There was no statistical difference between the service types (fire-based vs. non-fire-based) or annual call volume. There was, however, a statistically significant lower rate of contamination in services that provided paid, 24-hour coverage versus those that did not.

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