Bird flu found in Svalbard polar bear for first time

Summary

Norway said bird flu was found in a dead polar bear in Svalbard, the first known case in the species in Europe.

Why this matters

The finding adds to evidence that highly pathogenic avian influenza is being detected more often in mammals in Europe. It also highlights risks for Arctic wildlife and ecosystems as the virus spreads to new areas.

Bird flu was detected in a dead polar bear in Norway’s Arctic Svalbard archipelago, the first known case in the species in Europe, a Norwegian government agency said Tuesday.

The Norwegian Veterinary Institute said it also found bird flu in a dead walrus on Svalbard, which lies roughly halfway between the North Pole and mainland Europe.

“The findings are part of a trend where highly pathogenic avian influenza virus is increasingly being detected in mammals in Europe,” the institute said in a statement.

“At the same time, the virus has spread to new areas in recent years, including the Arctic, where it may have consequences for vulnerable populations and ecosystems.”

The institute said it was investigating whether the virus found in the polar bear and walrus was specifically adapted to mammals.

The virus was identified as the H5N5 subtype, which the institute said has been found in recent years in birds, Arctic foxes, and a walrus in Svalbard.

Highly pathogenic avian influenza has spread globally in recent years, affecting poultry flocks, disrupting supplies, and raising concerns about possible human transmission.

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