Cuny C, Friedrich AW, Witte W (2011): Absence of LA-MRSA CC398 as nasal colonizer of pigs raised in an alternative system.
Appl. Environ. Microbiol.: Epub Dec 9. doi: 10.1128/AEM.07260-11.

Livestock associated MRSA ST398 was reported so far from pigs raised in conventional farms. Here we report a study on 25 farms adhering to an alternative system. LA-MRSA ST398 was not detected in nasal swabs from 178 pigs and also not from 89 humans working and living on these farms.