Summary: The world’s first-ever study on how effective, or not, a fourth COVID booster shot might be has begun in Israel, with 6,000 individuals (including 150 medical staff) receiving these shots, their vitals then tracked to see what additional protections might be offered by another jab, and what the downsides might be.
Context: It’s thought likely we’ll need periodic immunity-boosting shots against COVID for a while, until and unless something changes the nature of the battle entirely—like a vaccine that counters all possible coronaviruses, which would theoretically maintain its effectiveness against future COVID mutations—but in the meantime, researchers are trying to determine whether it makes sense to rapidly create new strain-specific boosters, or to set up a consistent booster regimen that would keep folks generally safe from anything that’s likely to come along (and in either case, to determine how regularly such boosters should be administered to achieve optimal immunological outcomes).
—The Times of Israel