the unknown efficacy of the vaccine (some suggest all the vaccine does is lessen severity of symptoms, not even eliminate the virus from your body; think if a polio vaccine didn't promise to prevent all symptoms, so you only lost partial use of a couple limbs, lol)
or,
the effects of the vaccine on those already infected
or
the effect of subsequent infection on those vacinated.
Those last two are important in view of "antibody mediated enhancement" which is seen in other coronaviruses, e.g. feline leukemia virus, as well some coronaviruses whose names I can't recall, but which were discussed early on when people were "dropping dead on the street" in China.
GW, I am trying to keep it as little complex as possible.
Point # 1 : How many of the 500,000 American who have died WITH covid so far were vaccinated? My guess is close to zero.
Point # 2 : A gargantuan sample of 55 Million+ Americans have now been vaccinated. All I want to know is how many of them have died from covid after getting the vaccine or from the vaccine itself.
If that number is insignificantly small, the vaccine would be considered good news so far.
There is no point in getting in the mud wondering about long term effects of vaccine. It is a new type of vaccine, and pontificating it’s long term is just conjecture. No one knows! There is no history to extrapolate here.