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MRSA surveillance, rapid screening, and hospital hygiene key to preventing future transmission

The origins and future perspectives about meticillin-resistant Staphylococcus aureus (MRSA) are outlined in a review in this week's issue of THE LANCET.

S. aureus meticillin resistance was first reported in the early 1960s, but widespread resistance has only become a major public-health problem in recent decades. Hajo Grundmann (Projectleader of the European Antimicrobial Resistance Surveillance System) and colleagues outline the history and microbiological and genetic characteristics of MRSA; for example, the bacterium readily acquires resistance against all classes of antibiotics by one of two mechanisms: mutation of an existing bacterial gene or horizontal transfer of a resistance gene from another bacterium.

Also discussed are key issues such as the case for screening programmes to identify carriers of MRSA, and how community acquired MRSA--in addition to the management of MRSA in hospital settings--remains a critical public-health priority.

Professor Grundmann concludes: "If the new community-acquired MRSA clones are, however, sufficient to sustain endemic levels by transmission in the community, the MRSA situation in hospitals, which still remains out of control in many countries, could potentially become explosive. The onus is therefore on health-care authorities to develop not only surveillance systems that are able to monitor the clonal dynamics of MRSA over wide geographical areas, but also to provide the resources for early recognition of MRSA carriers through rapid screening. Hospital staff have a responsibility to implement, maintain, and adhere to strict contact precautions, should hospitals remain places where citizens can aspire to positive health-care outcomes with confidence."

A Comment highlights the dangers of ignoring community-aquired MRSA in preference to hospital-acquired MRSA. Professor Ian Gould (Aberdeen Royal Infirmary, UK) warns that outbreaks of MRSA in the community are occurring independant
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Contact: Joe Santangelo
j.santangelo@elsevier.com
212-633-3810
Lancet
31-Aug-2006


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