This week, U.S. Food and Drug Administration vaccine advisors will meet to discuss long-term COVID vaccine strategy. This follows the recent FDA authorization and CDC recommendation of a second booster available for people 50 and older and some immunocompromised people. Going forward, will the strategy change from counting boosters to making a COVID vaccine a seasonal shot? Allison Aubrey talks to Emily Kwong about the latest on boosters, what's known about the vaccination timeline for younger children, and what some experts are saying about the BA.2 variant.