Bird Flu Timeline

Looking at the emerging events around the spread of Bird Flu globally. For a more detailed science focused timeline check Think Global Health.

Last Update: Mon, February 10, 2025 at 7:18 AM

H5N1 virus can survive in rare-cooked meat, says USDA

Live H5N1 avian influenza can survive in meat cooked rare, the US Department of Agriculture (USDA) has found.

US Department of Agriculture, bird flu virus, H5N1, rare steak, 120 degrees Fahrenheit, ground beef, undercooked meat, rare meat, raw meat, dairy herdsReadArchived

In a study conducted this week, USDA scientists discovered that hamburgers cooked at 120 degrees Fahrenheit – the temperature of a rare steak – contained live traces of a substitute bird flu virus.