Since 2022, a highly contagious strain of bird flu has spread across the U.S. at an unprecedented rate, resulting in the deaths of more than 90 million birds in commercial and backyard poultry flocks, plus thousands more in the wild.
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Since 2022, a highly contagious strain of bird flu has spread across the U.S. at an unprecedented rate, resulting in the deaths of more than 90 million birds in commercial and backyard poultry flocks, plus thousands more in the wild.
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Diseases such as avian flu trigger the culling of millions of birds each year. But that need not be the case for much longer.
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U.S. health and agriculture officials are ramping up testing and tracking of bird flu in dairy cows in an urgent effort to understand—and stop—the growing outbreak.
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Heat stress in broilers can be defined as the result of metabolic, hormonal, and immune system changes suffered by the birds when they are unable to dissipate sufficient body heat to the environment due to unsuitable conditions.
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The confirmed presence of bird flu in American dairy cattle in a March 25 report from the U.S. Department of Agriculture (USDA) — and a case in Texas where a human working with cattle was infected — has put Canadian public health experts on high alert.