My first tweet of 2021 is going to be about 1 dose vs. 2 dose vaccine. I have tweeted in the past of the immunological advantages of a 2 dose vaccine. However, given the enhanced transmission variants on the rise, we need a modified strategy. (1/n) https://t.co/si1bxgKqbf

— Prof. Akiko Iwasaki (@VirusesImmunity) January 1, 2021