Highly Pathogenic Avian Influenza (HPAI) H5N1 is a virus historically carried by wild birds and was first identified in 1996.  The virus spread to domestic poultry and caused outbreaks in 2022 on U.S. commercial and backyard poultry operations resulting in high rates of mortality.  In March 2024,  HPAI H5N1 was identified in lactating dairy cattle …

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