3. Good news - but make sure to read the fine print.
The study had a disease onet between Sept 1, 2021 (sic) and January 1, 2021. I suspect they mean Sept 1, 2020 and January 2021 - a period almost entirely before Delta (first identified in India in 12/2020 - and didn't show up in the UK until months after this study was completed._ At least some reports sugggest Delta hits children harder.