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The current loss of life of a brown bear cub on Alaska\u2019s Kodiak Island has led to elevated issues in regards to the ongoing outbreak of extremely pathogenic avian influenza<\/a> in North America. Wildlife officers confirmed final Wednesday that the cub had examined optimistic for HPAI, making it the state\u2019s first documented case of a brown bear dying from chook flu. The cub isn\u2019t the primary (or the one) North American mammal to contract the virus, nevertheless, and its loss of life reveals a pair issues about how chook flu is transmitted, in addition to the extent of threat posed to different mammal species.<\/p>\n The Kodiak brown bear cub was discovered useless by a deer hunter on Nov. 26, in response to Alaska Public Media<\/a>. A necropsy carried out by the Alaska Department of Fish and Game (and confirmed by a laboratory within the Lower 48) pointed to HPAI as the reason for loss of life. Weeks earlier, officers in Glacier Bay National Park euthanized a black bear cub that was later decided to be HPAI-positive.<\/p>\n \u201cThey thought it was drunk\u2014it was stumbling, and then was abandoned by the mother,\u201d ADFG wildlife veterinarian Kimberlee Beckmen informed reporters with KTOO News<\/a>. Beckmen added that the cub\u2019s mind was swollen and he or she mentioned \u201cit would have died, probably within hours, had it not been euthanized.\u201d<\/p>\n This description additionally sounds remarkably much like a current report<\/a> involving a handful of bears that had been euthanized by Montana Fish Wildlife and Parks this 12 months after they had been seen strolling in circles and appearing disoriented. The brains of those bears had been additionally noticeably swollen, and whereas MFWP didn’t verify the reason for the swelling, these neurological signs appear to correlate with these seen in different HPAI-infected mammals.<\/p>\n To be clear, the listing of North American mammals which have examined optimistic for chook flu is comparatively brief, particularly when in comparison with the roughly 56 million wild and home birds which were affected by the virus already, in response to the CDC\u2019s newest rely<\/a>. In addition to bears, the listing of contaminated mammals<\/a> features a handful of foxes\u2014two of which had been additionally found in Alaska\u2014together with a number of skunks, raccoons, coyotes, otters, and bobcats. It additionally features a few marine mammals like dolphins<\/a> and harbor seals<\/a>.<\/p>\n The one factor that each one these species have in frequent is their propensity for scavenging, and it\u2019s seemingly that every of the contaminated animals picked up the virus by feeding on useless, contaminated birds. As Beckmen identified final week, scientists have additionally discovered the virus will not be foodborne, and that it could\u2019t be handed from one mammal to a different.<\/p>\n \u201cThey don\u2019t get it by ingesting, but they get it by inhaling the virus,\u201d she mentioned. \u201cSo, while they\u2019re scavenging, they\u2019re probably inhaling the virus and that\u2019s how it gets into their system.\u201d<\/p>\n Read Next:<\/strong> We\u2019re Experiencing the Deadliest Bird Flu Outbreak in History. Here\u2019s What All Bird Hunters Need to Know<\/a><\/p>\n Beckmen\u2019s level additionally brings up a significant concern that some hunters have about their chook canines being contaminated. The current findings show that despite the fact that the chance posed to searching canines could also be very low, it\u2019s nonetheless doable for a canine to select up chook flu whereas retrieving an contaminated chook. Hunters can decrease these dangers even additional by not sending their canines out to retrieve birds which are clearly sick, and by avoiding areas with excessive concentrations of sick or useless waterfowl.<\/p>\n \u201cThe risks that I perceive for dogs would mainly be for retrievers if they\u2019re used to retrieve waterfowl,\u201d Beckmen says. \u201cOr if they\u2019re taken out and swum in a lake or pond that\u2019s highly contaminated with waterfowl droppings.\u201d<\/p>\n The threat posed to people, in the meantime, stays extraordinarily low, in response to each ADFG and the CDC. There has solely been one documented case<\/a> of a human contracting chook flu within the United States this 12 months, and that individual was working at a business poultry operation the place they had been actively concerned with culling HPAI-infected birds.<\/p>\n \u201cIn the world there\u2019s only been three people that have had the virus, and the one in the U.S. wasn\u2019t even sick from it,\u201d Beckmen says.<\/p>\n<\/p><\/div>\n