While the risk of passing on the virus through milk is zero due to pasteurization -- the fact that virus fragments have been detected in one-in-five samples taken of milk indicates that the virus is already more widespread among cattle than initially thought. See the article below...
https://www.nbcnews.com/health/health-ne...a-fi-rcna149459The concern here is spreading from cow-to-person, and the eventual possibility of person-to-person transmission.