USDA Tests Find No Bird Flu in Properly Cooked Burgers

Published on May 17, 2024

U.S. researchers found no bird flu in ground beef inoculated with influenza and cooked to medium or well-done levels, the U.S. Department of Agriculture (USDA) announced on May 16. USDA scientists took a surrogate of the highly pathogenic avian influenza A strain H5N1 and injected it into ground beef patties. They then cooked the patties to varying temperatures. The testing identified no virus in burgers cooked to 145 degrees or 160 degrees Fahrenheit. Those temperatures represent medium and well-done burgers. “The researchers have determined that cooking and internal temperature of 145 are sufficient to eliminate all traces of this artificially introduced virus created in the laboratory,” Eric Deeble, a deputy assistant secretary at USDA, told a briefing....

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