I wish to test the Hypothesis that Placebo jabs cause a weakened Immune System, leading to higher incidence of Covid19 infection.
The clinical trials I have seen had 2 subsets of volunteers, one receiving injection of the Test substance and the other an injection of a Saline Placebo.
Given that Nickel and Chromium from the needles used are likely to induce Allergic reaction in a significant percentage of the population, it would be useful to have a 3rd cohort, matched to the rest, but simply observed and receiving neither the Test substance nor Placebo.
Have any such trials been published?