A bacteria strain that causes a hard-to-treat staph infection probably developed its antibiotic resistance in food animals, a team of scientists announced Tuesday.
The strain of staph, known as methicillin-resistant Staphylococcus aureus, or MRSA CC398, most often infects farm workers who come in contact with infected pigs, turkeys, or cows. The bacteria has been found in about half of meat samples taken throughout the country. The researchers say that the copious use of antibiotics in livestock used for food is to blame for the infection's drug resistance.
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