Dr. Anthony Fauci said Sunday that he anticipates the coronavirus could kill 100,000 to 200,000 Americans while infecting “millions” of others.

Speaking on CNN’s “State of the Union,” Fauci, director of the National Institute of Allergy and Infectious Diseases, said, however, that he does not want to be held to that prediction because the outbreak of COVID-19, the disease caused by the coronavirus, is “such a moving target.”

Fauci’s comments come as the much of the nation is shut down to contain the spread of the disease, which first appeared in China late last year. As of Sunday evening, about 139,000 coronavirus cases have been confirmed in the U.S., the highest total of any nation, with at least 2,400 deaths, according to figures compiled by NBC News.

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