I’m very concerned that we won’t reach herd immunity in the US because of vaccine complacency—not anti-vax people but those who need to be incentivized & see what’s in it for them. We need to clearly message vaccination = ticket to pre-pandemic life. pic.twitter.com/9tXw9C3bP0

— Leana Wen, M.D. (@DrLeanaWen) March 13, 2021