Th only major variant in the US competing with B.1.1.7 (UK) is P.1 (Brazil). Lessons from British Columbia, where there were over 2,600 documented cases. A 5-day vaccine blitz combined with mitigation measures took it down https://t.co/9JCndOTwNL @kimmackrael pic.twitter.com/7UYKw42tpP

— Eric Topol (@EricTopol) May 11, 2021