The U.S. FDA issued its April 2024 update, noting that "the presence of HPAI [highly pathogenic avian influenza] using quantitative polymerase chain reaction (qPCR) testing" has been detected in its testing of milk from affected animals, in the processing system and on store shelves.
The FDA notes that while the presence of particles of the virus was detected, it had been inactivated. This inactivity was the result of the pasteurization process that 99% of the commercial milk supply produced on dairy farms in the U.S. is subject to through the Grade "A" milk program and the Pasteurized Milk Ordinance. Therefore, the organization says that pasteurization "eliminate[s] pathogens to a level that does not pose a risk to consumer health."