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Bird Flu Found in Sea Mammals, Upping Risk to Humans

FRIDAY, March 1, 2023 (HealthDay News) -- Bird flu has mutated to spread more easily between birds and marine mammals, increasing the potential risk to humans, a new study warns.

Four sea lions, one fur seal and a tern found dead in Argentina all tested positive for the avian influenza virus H5N1, researchers report.

Further, genetic analysis revealed that the virus was nearly identical in all the animals, and shared adaptations were previously detected in a human case in Chile as well as in sea lions in Peru and Chile.

The fact that the same virus was found in the tern indicates a multi-species outbreak, researchers noted.

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