A new outbreak of highly pathogenic avian influenza is spreading among wild birds in North America. While there are only a few confirmed cases in Western Alaska, the scope of the outbreak still has…

A wildlife pathologist in Saskatoon says his lab is testing several skunks and fox kits showing neurological signs that could be caused by avian flu. The transmission to mammals is not a surprise to Bollinger, who said cases have been showing up in the United States. There are other viral diseases - such as distemper and rabies - that cause similar symptoms in these species.

Most likely foxes become infected from feeding on deceased birds. In the past month, HPAI has been detected in red foxes in Michigan, Minnesota, Wisconsin, and Ontario in areas where the virus was also detected in wild birds.

These cases represent the first detections of highly pathogenic avian influenza virus (HPAIV) H5N1 A/goose/Guangdong/1996 (Gs/GD) lineage in wild mammals in Ontario, Canada and in the Americas. One of the kits was found dead and the other was exhibiting severe neurological signs (including seizures) and died shortly after admission to a wildlife rehabilitation centre.

"We had an unusually large number of calls about skunks that were acting strange or being found dead and it was all within the area where we had confirmed that the avian influenza virus was present in the snow geese," Dr. Margo Pybus, a provincial wildlife disease specialist with Fish and Wildlife Alberta Environment and Parks, said. "We believe that the skunks are feeding on the dead geese and they are getting enough virus that it’s actually affecting the skunks."