I still don't understand why the administration is moving forward with extra doses of vaccine for the general population.

Breakthrough infections are to be expected.

But protection versus hospitalization still looks EXCELLENT.

with @MSNBC's @mehdirhasan on @allinwithchris pic.twitter.com/GRSVubIDwW

— Céline Gounder, MD, ScM, FIDSA 🇺🇦 (@celinegounder) August 18, 2021