British Prime Minister Boris Johnson said that the B.1.1.7 variant of COVID-19 which was said to be 50% to 70% more contagious, has now been discovered to also be 30% deadlier. The CDC warns it could become the dominant strain in the US by March.The UK's chief scientific adviser, Patrick Vallance, broke it down this way, according to CNN. “If you took... a man in their 60s, the average risk is that for 1,000 people who got infected, roughly 10 would be expected to unfortunately die with the virus. With the new variant, for 1,000 people infected, roughly 13 or...