Electron micrograph of MRSA

ST8: USA300 methicillin-resistant Staphylococcus aureus is a (MRSA ) type. He is resistant to antibiotics, contagious and can quickly lead to progressive, fatal disease with necrotic pneumonia, severe sepsis and necrotizing fasciitis.

The epidemiology of infections caused by MRSA has changed considerably: MRSA have fallen in the past ten years in the company. The two MRSA clones USA400 and 300 have become strong in the United States and in Western Europe, usually contain Panton-Valentine leukocidin ( PVL - MRSA) and often referred to as skin and soft tissue infections begin. Outbreaks of so-called community -associated infections (CA ) -MRSA were found in prisons, sports teams, among recruits in birth clinics, nursing homes and among active homosexual men. Are now found epidemic in many urban areas and are responsible for most MRSA infections.