I have heard varying accounts, that some were infected by the government, and of course, that they had it before the study.
Injected or not, the fact that the government played games with people's lives, denying them proper medical care, while lying to them, and allowing them to infect others, and die, is what bothers me the most.
Imagine being one of those people, thinking the government is going to treat your disease and make it go away, and instead they knowingly let it continue on purpose, until you infect your wife and kid, and then you die.
It wouldn't surprise me in the least, that the missing studies for the long term effects of this new covid vaccine, will be filled by the first people to get the vaccine, like front line essential workers and the elderly.
I'm no tin foil hat guy, but I don't trust the government, and for good reason, and I surely don't trust an unknown vaccine from a government I don't trust, especially since the fastest previous vaccine in history took 5 years to develop.