US to survey dairy cattle brought to slaughter to study bird flu infections

Regulators will inspect cows to see how widespread virus is and determine whether ageing and cooking inactivate it

The US will track bird flu infections in dairy cows brought to slaughter to understand the ways the virus infects meat and will also continue testing raw milk cheeses to see whether the virus is inactivated in the ageing process.

The renewed focus on the US food chain is the latest front in the effort to combat the infectious bird flu virus, or H5N1, which has triggered alarm bells across the world as a potential future pandemic.