https://theconversation.com/as-bird-flu-continues-to-spread-in-the-us-and-worldwide-whats-the-risk-that-it-could-start-a-human-pandemic-4-questions-answered-200204
Avian influenza viruses have evolved to infect birds, but the current H5N1 outbreak is also infecting a wide range of mammals. This suggests that it could mutate into forms that threaten humans.
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