U.S. "virus hunter" W. Ian Lipkin assisting China

A specialist known as one of the world's leading "virus hunters" is in China, to help contain the coronavirus epidemic. 

Dr. W. Ian Lipkin, the John Snow Professor of Epidemiology from Columbia University, is also the director of Columbia's Center for Infection & Immunity Mailman School of Public Health.

Dr. Lipkin came to China 17 years ago to help fight SARS.

His week-long trip this time included Guangzhou and Beijing, without going to Wuhan. "I've not been to Wuhan, I'll not be able to get back into the U.S. very easily, and that would impede my ability to the work. Although I would like to have gone to Wuhan, unfortunately logistics made that impossible", he says.

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U.S. "virus hunter" W. Ian Lipkin assisting China