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H5N1 bird flu has spread to human from cow in 2nd probable case, CDC reports


A second human case of bird flu has been linked to the ongoing outbreak in cows on U.S. dairy farms, the Centers for Disease Control and Prevention (CDC) reported Wednesday (May 22). 

A subtype of avian influenza called H5N1 was initially discovered in U.S. cows in March and has since been detected among cattle in nine states. The commercial milk and meat supply is safe to consume, although raw milk samples from sick cows have been found to carry the virus, so unpasteurized milk might pose a risk of infection to humans. 


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