By comparison, consider the incidence of Reye's syndrome, which is associated by the use of aspirin in young people who have other issues going on. It affects less than one in a million among young people. It is associated with aspirin, and when it occurs it can be deadly serious. There is usually a warning on an aspirin box if you look for it.

There is no causal relation between Reye's syndrome and the incidence of blood clots for a very small, very very small, proportion of vaccinnees. In the case of AstraZeneca and Johnson & Johnson we are still on a learning curve, and the phenomenon of vaccine resistance is substantial, including some in this thread.

At this point in time, I think there are valid doubts as to whether or not we're going to obtain herd immunity anywhere. This is serious because it will lead to more people getting sick with Covid variants, and we could get into a 'chasing-our-tail' situation.

The lesson is: Get those vaccines into people, but do the research because the nay-sayers are gonna neigh their lungs out without doing any research.