Pasteurization is a good thing. It saves lives. From the CDC's info page on raw milk...
"Can drinking raw milk hurt me or my family?
Yes. Raw milk can cause serious infections. Raw milk and raw milk products (such as cheeses and yogurts made with raw milk) can be contaminated with bacteria that can cause serious illness, hospitalization, or death. These harmful bacteria include Brucella, Campylobacter, Listeria, Mycobacterium bovis, Salmonella, Shiga toxin-producing E. coli, Shigella, Streptococcus pyogenes, and Yersinia enterocolitica. From 1993 to 2006, 69 outbreaks of human infections resulting from consumption of raw milk were reported to CDC. These outbreaks included a total of 1,505 reported illnesses, 185 hospitalizations and 2 deaths. Because not all cases of foodborne illness are recognized and reported, the actual number of illnesses associated with raw milk likely is greater."
Check out the facts for yourself
http://www.cdc.gov/nczved/dfbmd/disease_listing/rawmilk_g...
http://www.nctimes.com/news/local/article_e78abd49-f###-#...