Boosters for Young Adults: Risk-Benefit Assessment and Arguments Against Mandate

Seems suspect when the conclusion is partially based on sponsor provided data

Also, it's a preprint and has not been peer reviewed

I don't know specifics, but a few regions have said no boosters for young people. UK for sure, I seem to recall Ontario or Canada as well.

Moderna-backed Mouse Study offers first head-to-head BA.5, BA.1 'Booster' data : https://arstechnica.com/science/2022/09/in-mice-the-new-ba-5...

Bottom line is they don’t recommend Covid boosters for young people as the harm outweighs the benefits.

TL&TT;DR, The abstract does not indicate, which strain, nor which mRNA 'Booster' data was used in their conclusions.

It's not in the abstract but you can open pdf and see its omicron vs vanilla pfizer (bnt162b2) and moderna (mrna-1273).