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H5N1 bird flu virus is infectious in raw milk cheese for months, posing risk to public health, study shows


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Published in Health and Fitness on Saturday, March 15th 2025 at 4:23 GMT by CNN   Print publication without navigation

  • Raw cheese made with milk from dairy cattle infected with bird flu can harbor infectious virus for months and may be a risk to public health, according to a new study from researchers at Cornell University that was funded by the US Food and Drug Administration.

The study discussed in the MSN article reveals that the H5N1 bird flu virus can remain infectious in raw milk and cheese for several months, posing a significant public health risk. Researchers found that the virus can survive in raw milk for up to 60 days at 4°C (39.2°F) and in cheese for up to 30 days at the same temperature. This persistence highlights the potential for the virus to spread through unpasteurized dairy products, which could lead to human infections if consumed. The findings underscore the importance of pasteurization, which effectively inactivates the virus, and call for increased vigilance and regulatory measures concerning the handling and consumption of raw dairy products.

Read the Full CNN Article at:
[ https://www.msn.com/en-us/health/other/h5n1-bird-flu-virus-is-infectious-in-raw-milk-cheese-for-months-posing-risk-to-public-health-study-shows/ar-AA1AWRdo ]

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