Doctors around the world are worried about the threat of the global spread of bird flu, or avian influenza. In Hong Kong, scientists studying the virus are also concerned about how quickly the virus is evolving. The latest mutation of the virus is able to kill chickens in the lab within 24 hours. A leading scientist worries that a future mutation could be transmitted more quickly between humans, leading to a global pandemic. Listen to learn more about this research and the threat of bird flu.
Story Length: 5:42
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