> The real issue would arise if they can somehow test high school students and find similarly high percentages (90+ percent), but since you can't test right now until they are deceased (from what I understand), that would be extremely hard to do.

I think that's seriously downplaying the issue.

Let's say hypothetically HS football players are developing it at 10% vs 1% in the general population. That alone would be a massive discovery, and grounds for seriously reworking or even eliminating HS football. You don't need these rates to be in the 90% range for this to be game changing, so to speak.