HPAI infecting lactating dairy cattle in the US Expert says bovine influenza A virus (BIAV), also known as highly pathogenic avian influenza (HPAI) in cattle is found primarily in multiparous (second lactation or older) cattle17 July 2024 17 July 2024 6 minute read 6 minute read By: By: Jennifer Gimpert North AmericaFor the first time in the US, highly pathogenic avian influenza (HPAI) has been identified in domestic livestock including goats and dairy cattle. Since highly pathogenic avian influenza (HPAI) has been detected in dairy cattle, industry specialists are looking at what this means for domestic livestock. As of the middle of April, there have been 29 confirmed herds of dairy cattle in eight states infected with HPAI. There is no specific treatment for HPAI in dairy cattle, so they are treated for symptoms. HPAI biosecurity on dairy farmsProducers are advised to look at management practices to protect cattle and people from exposure.