Community-acquired Methicillin-resistant Staphylococcus aureus ST398 Infection, Italy.

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) has been identified in livestock animals (particularly pigs), veterinarians, and animal farm workers. CA-MRSA strains from pigs have been classified most frequently within the multilocus sequence type (ST) 398 and have been rarely identified as a cause of invasive infection in humans. This article reports on a case of invasive infection in a pig-farm worker in Cremona, Italy, an intensive animal farming area; the infection was caused by MRSA of swine origin, ST398. Emerg Infect Dis. 2009;15(5):845-7.