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Additional Diagnoses of H5N1 Infection in Free-living Mammals


In addition to a growing incidence of confirmed bovine influenza-H5N1 infection in dairy herds, surveillance conducted by APHIS has detected infection in a wide range of mammals in the vicinity of affected herds.  Species include feral domestic cats in Minnesota and Texas, raccoons in Michigan and New Mexico, a skunk in New Mexico and a fox in Minnesota. Previously APHIS isolated H5N1 from mice in the vicinity of affected dairy herds, a finding of potential zoonotic significance.


Isolation of H5N1 continues from wild birds. Species affected include bald eagles in Iowa, New Jersey, and Virginia that are presumably scavenging on dead infected waterfowl.