Experts weigh in on how to squash the new COVID strains discovered in Maryland

WOKING, ENGLAND - FEBRUARY 01: A woman sits at a bus stop on February 01, 2021 in Woking, England. Health authorities said door-to-door testing will begin in the area this week, due to concern that the South African variant of the novel coronavirus is more resistant to current covid-19 vaccines. (Photo by Dan Kitwood/Getty Images)