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Community strain of methicillin-resistant Staphylococcus aureus involved in a hospital outbreak
Journal article   Peer reviewed

Community strain of methicillin-resistant Staphylococcus aureus involved in a hospital outbreak

F.G. O'Brien, J.W. Pearman, M. Gracey, T.V. Riley and W.B. Grubb
Journal of clinical microbiology, Vol.37(9), pp.2858-2862
09/1999
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Abstract

Western Australia (WA) has been able to prevent methicillin-resistant Staphylococcus aureus (MRSA) strains from outside of the state from becoming established in its hospitals. Recently, a single-strain outbreak of MRSA occurred in a WA metropolitan teaching hospital following admission of an infected patient from a remote community. The strain responsible for the outbreak was unrelated to any imported strains and spread rapidly in the hospital. Screening of two remote communities in the region from which the index case came revealed that 42% of the people in one community and 24% in the other carried MRSA. Isolates were typed by resistance pattern, plasmid analysis, contour-clamped homogeneous electric field electrophoresis, bacteriophage pattern, and coagulase gene restriction fragment length polymorphism. It was found that of the people carrying MRSA, 39% in the former community and 17% in the latter community were carrying an MRSA strain which was indistinguishable from the strain that caused the hospital outbreak.

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