Bird flu: Should we be worried about the virus infecting mammals?

Avian influenza infections have been documented in a variety of mammals, including foxes and minks, but it is unknown whether the virus can be transmitted from one mammal to another.

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February 2, 2023

Rangers in protective clothing collect dead birds on the beach

A National Trust ranger collects dead birds in the Farne Islands, England.

PA Images / Alamy Stock Photo

The world is currently in the midst of the largest bird flu outbreak in history, and there is new evidence that mammals are infected.

What is the current bird flu situation?

Since the latest outbreak began in October 2021, the H5N1 subtype of the virus has spread through seabird colonies, farmed poultry and wild flocks to the United States, Europe and beyond. In the last 15 months, nearly 15 million birds worldwide have died from bird flu, plus…

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