Nuclease vaccine.. - What possible prevention wud it help? (Dec/25/2006 )

Helow!
I've been reading on some staphylococcus nuclease cattle vaccines.. but.. rather stupidly.. am not understanding how / what disease prevention it may be helpful for..? Can any1 tell me?
Thanku;)

hey cheeztoast

look up "mastitis"

this is an illness particularly relevant to the dairy industry that is caused by S aureus. so, if cattle are being vaccinated against staph, this would be first guess as to the target illness