See, in that thread about trump and imperialism, I could get behind the argument of 'the interests of capital entirely dictate the outcome', but here there are facts of biology that are outside of the control of capital. Most of the ruling class would love for everyone to be fully immunized immediately, but if some issue comes up about the effectiveness or side effects of the vaccine, they may decide that the second best option is to cover up the flaws so that they can tell people to go back to normal.