In this Wednesday, Jan. 22, 2020, file photo, a staff member moves bio-waste containers past the entrance of the Wuhan Medical Treatment Center in Wuhan, China, where some people infected with a new virus are being treated. The new virus comes from a large family of coronaviruses, some causing nothing worse than a cold. Others named SARS and MERS have killed hundreds in separate outbreaks. (AP Photo/Dake Kang, File) **FILE**
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