[rsfern]

The preprint discussed in that post specifically calls out that there weren’t enough myocarditis events in the 13-17 age group to reliably estimate the relative risk, so I don’t see where that conclusion is coming from

Also, note the higher relative risk only applies to the full moderna dose

https://www.medrxiv.org/content/10.1101/2021.12.23.21268276v...

[spurgu]

There have been similar reports from Ontario and some country I can't recall at the moment.

[rsfern]

Similar reports of what?

I’m not saying that I don’t think myocarditis is a risk factor for kids and teens, just that this paper isn’t giving a quantitative assessment of its relative risk vs Covid. If you have seen research that does provide quantitative insight, I would be interested to read it; I have two kids under 5 and I’m still evaluating things.

[spurgu]

> Similar reports of what?

Of myocarditis in kids (especially boys).

This is the pre-print I was thinking of: https://www.medrxiv.org/content/10.1101/2021.12.02.21267156v...

I have a pre-teen daughter myself and while she's not directly in a "risk-group" (like boys are) I wouldn't feel comfortable shoving jabs and boosters after boosters into her, when the benefits are dubious.

This is why many countries are holding off on vaccinating kids still, even though some countries like the US seem to be hellbent on vaccinating 100% at any cost.

Edit: The above study has risks broken up by which vaccines were administered as 1st/2nd (page 12). Interestingly Moderna+Pfizer seems to have no(!?) risk, whereas myocarditis is very high among Pfizer+Moderna. Not sure what to make of it.

Edit2: Keep in mind we haven't vaccinated <12 year olds extensively yet, but the data on young children is already worrisome (to the point where risks of myocarditis seem to outweigh risks of Covid).

Edit3: I'm myself double-jabbed, so not an antivaxxer per se, even though I'm classified as one as per "modern definition".

[rsfern]

Thanks for the link, it’s interesting that they have similar findings to other studies based on passive reporting systems like VAERS in the US.

I don’t think the forever-recurring boosters are going to be a thing, it seems like cellular immunity is holding, and from the apparent drop off in myocarditis with greater spacing between doses one and two in this paper, that seems like evidence that 3-6 months would have been a better spacing than 3-4 weeks

> Interestingly Moderna+Pfizer seems to have no(!?) risk, whereas myocarditis is very high among Pfizer+Moderna. Not sure what to make of it.

I wouldn’t pay this much heed at all (based on this data at least). There were under 10k people in that first group (and zero cases of myocarditis), and the confidence intervals of the poisson regression overlap. You can even see from the figure how the model predicts a non-zero rate even though there were no actual cases!