Article
The Evolution of Pandemic Clones of Methicillin-Resistant Staphylococcus aureus : Identification of Two Ancestral Genetic Backgrounds and the Associated mec Elements
1 Dec 2001
Abstract excerpt
Previous surveillance studies carried out by our laboratories, primarily in Southern and Eastern Europe, Latin America, and the United States, have characterized 3,067 methicillin-resistant Staphylococcus aureus (MRSA) hospital isolates by a combination of molecular typing methods. Nearly 70% of these isolates could be classified into five clonal types showing extensive geographic spread. Representative isolates...
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