Experts say pasteurized milk is safe, and the virus does not yet pose a threat to humans.
U.S. health officials are closely monitoring the recent leap of avian flu from birds to cattle — and earlier this month, to a Texas dairy farmer.stresses the current public health risk is low — the virus isn’t known to spread among people or through the food supply, is rarely caught from exposure to infected animals, and where human infections have occurred, is often mild and manageable.
California, the nation’s leading milk producer, is working out the details of a testing program for all incoming animals to comply withWorried dairy farmers are taking biosecurity steps to help protect herds, although testing of the state’s animals remains voluntary. While California remains off the list of infected states, “it’s a very dynamic situation that could change from day to day,” saidThere are two major clues that the outbreak is bigger and started earlier than experts thought.
In birds, this is the worst flu outbreak in U.S. history, according to U.S. Department of Agriculture data. The virus also has been detected in other mammals, such as elephant seals and sea lions in South America, where it is very deadly. California ships many dairy cattle in and out of state, said Lehenbauer. Most cows coming into California are heifers that do not yet produce milk. Cattle leaving the state tend to be steers headed to feedlots for beef production.
And too-restrictive regulations could disrupt the critical supply chain that provides the nation’s milk, Lehenbauer said.
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