NPR

Deadly Bird Flu In China Evolves, Spreads To New Regions

In the 2017 outbreak, the Chinese government reported 759 cases of the H7N9 avian flu, with 281 deaths. By comparison, in 2016 there were 123 cases.
A patient with the H7N9 avian flu is treated in a hospital in Wuhan, in central China's Hubei province, in February of this year. The 2017 outbreak was the deadliest in China since H7N9 first appeared in humans in 2013. / STR / Getty Images

This past year China had the largest outbreak of a deadly bird flu since the virus was first detected in March 2013.

For the past five years, China has had annual waves of H7N9 outbreaks

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