Most people will need to get a fourth COVID-19 vaccine dose to be protected from the virus, the head of Pfizer said on Sunday.
“It is necessary for most” people, CEO Albert Bourla said during an interview on CBS’s “Face The Nation” when asked if Americans can expect to get annual COVID booster shots every fall.
The regimen of two initial doses plus a booster is not able to protect against variants and wanes too quickly in strength, Bourla conceded — making additional shots inevitable.