First isolation of a methicillin-resistant from bovine mastitis in Argentina.

This research communication describes the first isolation of a methicillin-resistant (MRSA) from cow's mastitic milk in Argentina. Bovine mastitis causes important economic losses in the dairy industry and the most commonly isolated bacteria from bovine mastitis are . The A gene present in MRSA bacteria confers resistance to almost all -lactam antibiotics, the most frequent drugs used in bovine mastitis therapy.