This sounds like the new "disease" of "sudden adult death syndrome". [1] One cause that's explicitly unmentioned is the mass rollout of experimental mRNA shots. [1]: https://www.mayoclinic.org/diseases-conditions/sudden-cardia...
Hey guys, found the antivaxxer.
Hey guys, found someone violating the rules with name-calling. Here's a serious source proving that the most recent shots are not even tested on humans.[1] So, from a scientific basis, I don't think it can be easily ruled out from the list in TFA.
[1]: https://www.cbs17.com/community/health/coronavirus/fact-chec...