I don't doubt it simply because we know most people are vaccinated and we know people continue to be hospitalized and some of those people have covid. Someone probably knows just how many of those are in the hospital because they have covid or because of some other reason with covid being coincidental. That is another statistic which is not publicized.
There continue to be some cases which are serious and some people who suffer badly from covid; some even die. The vast majority, regardless of vax status, do not. The efficacy of the vaccines is closer to zero than it is to the 95% which was originally claimed by Faucci. GD