This is from New Scientist last year:
Dosing livestock with antibiotics can be bad for farmers’ health. A strain of MRSA that causes skin infections and sepsis in farm workers evolved its resistance to antibiotics inside farm animals.
The ST398 strain of MRSA first appeared in 2003 and is prevalent in US livestock. Humans who pick it up from animals can become dangerously ill, but it cannot yet spread from human to human.
And now, according to The Daily Mail, strain ST398 is showing up in British milk:
Scientists tested 1,500 samples of bulk milk and found seven cases of MRSA ST398 from five farms in England, Scotland and Wales.
It might not be long before the sometimes deadly ST398 evolves, developing the ability to be transmitted between humans. One more tragic antibiotic fail waiting to unfold.
An educated opinion on this news can be found at Wired.com.
Note: The pasteurization process should kill MRSA, but not all milk and cheese is pasteurized.