US boosters or vaccinate the world?

The Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) this week shared recommendations for COVID-19 vaccine booster shots, which — alongside mandates to boost vaccination rates — will help get the pandemic back under control as the second COVID-19 winter looms. 

These recommendations — and the underlying evidence of vaccine effectiveness and durability — are good news more or less across the board, despite the concerns of those who oppose boosters so long as global vaccination rates remain low.

The FDA and CDC drew...