Hamburgers are safe from bird flu if properly cooked, USDA says

Hamburgers heated to 120 degrees F —or rare—showed the virus surrogate was present at reduced levels, the USDA said.

No bird flu virus was found after cooking ground beef to medium to well done, the U.S. Department of Agriculture said in a briefing on Thursday after conducting a study as it addresses concerns over an outbreak of the disease in dairy cattle.