H7N9 influenza, a zoonotic disease that emerged in China in March, isn't as deadly as first thought, according to a report by the Chinese Center for Disease Control and Prevention and the University of Hong Kong, which said the mortality rate is roughly 36% for H7N9 patients who are admitted to hospitals. Some 27,000 undetected, milder cases may have also occurred. New infections have slowed, likely due to warmer weather and the closing of live poultry markets, considered the source for most human infections.

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