The H5N1 bird flu virus has been found in the raw milk of infected cows, including in samples of milk sold in grocery stores. US health agencies recommend against consuming raw milk products but assure safety when pasteurized.
Since 2022, the H5N1 virus has spread quickly among other animals, demonstrating its ability to adapt and transmit to different species. Recent outbreaks in cows and various mammals highlight this cross-species transmission potential.
The US CDC stated that there is no substantial evidence of H5N1 bird flu spreading among humans. The current public health risk is deemed low, with human-to-human transmission remaining rare due to the virus's limited adaptation for human cell replication.
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