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          WHO: Asymptomatic transmission not a major driver

          By Ouyang Xueyan, Zhang Yunbi | chinadaily.com.cn | Updated: 2020-03-06 05:43
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          The World Health Organization's emerging diseases and zoonosis unit does not believe that asymptomatic transmission is a "major driver" of the novel coronavirus outbreak, the unit's head, Maria Van Kerkhove, told a news conference on Thursday.

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