How fast is bird flu spreading in US cows? ‘We have no idea’

Avian flu is spreading rapidly among cattle, but public health and infectious disease experts are concerned the United States is too limited in its testing, leaving an incomplete picture of the virus’s spread.  

The threat to the general public is currently low, health officials say, and the country’s milk supply is safe. Just one person has been infected. ...

But the outbreak is widespread; officials have found the virus in 42 herds across nine states. Dairy farm workers are at risk every time they are exposed to potentially infected cattle, and viral mutations could cause an outbreak, experts warn.  

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Farmers resist push for workers to wear protective gear against bird flu virus While the bird flu virus risk to the general public is still very low, the threat is more significant for farm workers in contact with cows. Sarah Owermohle STAT

WASHINGTON — The Centers for Disease Control and Prevention recommended this week that dairy and poultry farms with infected animals supply protective gear to workers in a bid to stave off human transmission of the H5N1 virus. The challenge now is making it happen.