A new, more transmissible strain of COVID-19 (known as B.1.1.7) has caused quite a stir these past few weeks. It surfaced in the United Kingdom and has been detected in eight states: California, Colorado, Connecticut, Florida, Georgia, New York, Texas, and Pennsylvania. The fact that a mutant strain happened isn’t a surprise, as RNA viruses mutate quite often. But as vaccines roll out, the spread of a new strain is yet another reminder that we’re nowhere near out of the woods yet.