Avian Flu Jumps to Mammals (Update: continued evolution to human illness)

staphory said
Why?
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https://emedicine.medscape.com/arti...ity rate,is worrying and reasonably accurate.
I would assume because it has a high mortality rate.

The strain previously considered the greatest threat was H5N1, mostly because of the high associated mortality rate (up to 60%) in infected humans.
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