Britain's Health Secretary, Matt Hancock, speaks at a press conference inside 10 Downing Street on further restrictions to be put in place due to the ongoing coronavirus pandemic on December 23, 2020 in London, England. (Photo by Kirsty Wigglesworth LONDON - Britain’s health secretary Matt Hancock alerted the United Kingdom of another new strain of COVID-19 circulating in the country after scientists announced the discovery of a second, "more transmissible" mutation of the novel coronavirus. "We’ve detected two cases of another new variant of the coronavirus here in the U.K.," Hancock said during a news conference Wednesday.