The FDA Really Did Have to Take This Long

If vaccine approval feels maddeningly scrupulous, that’s because the alternative is worse.

After months of anticipation, Americans have a fully licensed COVID-19 vaccine. Today, the FDA announced the approval of Pfizer-BioNTech’s shot for people 16 and older—the first complete thumbs-up among the three vaccines available in the U.S.

The pervasive mood has been: Finally. Pfizer’s shot was given its emergency use authorization—the vaccine’s training wheels—back in December, and the company submitted its application for full approval in May. While America’s emergency-use vaccination rollout has saved an untold number of lives, many...