Biden health adviser warns of virus variants, future lockdowns

Michael Osterholm, is director of the Center for Infectious Disease Research and Policy at the University of Minnesota. Osterholm said on NBC’s “Meet the Press” that the nation’s health care system must prepare for a surge in serious cases such as the one experienced recently in England. (Glen Stubbe/Minneapolis Star Tribune/TNS)

A top health adviser to President Joe Biden warned Sunday that a new variant of the coronavirus circulating in the U.K. will likely become the dominant strain in the U.S. and may lead to future restrictions on in-person gatherings.