Biden’s Controversial COVID-19 Vaccine Booster Plan

Last month, the Biden administration announced a plan to begin administering third shots of the two mRNA COVID-19 vaccines to healthy people in mid-September to shore up potentially flagging immunity to the coronavirus. 

But many scientists say that given the available evidence, which shows the two-dose vaccines still provide formidable protection against severe disease, it’s not yet clear that boosters are needed.

“What we expected from this vaccine is that we wanted it to protect against severe disease and the kind of disease that caused you to go to the...