[Rain Man]

Originally Posted by RunKC

So after the day of this being administered for the first time, we hear of problems? And people wonder why folks are uneasy about this without further data and time.

https://www.cnn.com/2020/12/09/healt...DHhEiX4i_7R_Bs

This points out that no research is going to be perfect due to self-selection. I bet that people with significant allergy issues probably tend to not volunteer for trials, so you can't predict that type of problem until it hits the general population.