President Donald Trump has claimed repeatedly that the coronavirus will one day simply “disappear,” but infectious diseases expert Dr. Anthony Fauci warned that’s not going to happen.

“No, it’s not,” Fauci told ABC’s David Muir. “All you’ve got to do is look at the data, David. The virus is telling us what it can and will do if we don’t confront it properly.”

Fauci, who is director of the National Institute of Allergy and Infectious Diseases, added that public action can make a big difference in what happens next.

“We could get it to be under control if we do the things that we’re talking about,” he said, referring to social distancing, masks and other measures.