It probably was not a vaccination - it was a TB skin test. The place on the forearm that he displayed in the video is exactly where they give a TB skin test. They inject a tiny amount of tuberculin under the skin and check for an immune response (swelling, redness, irritation) in 48-72 hours. I've had them done several times in my life for jobs working with the elderly.

In some places, TB skin tests are routinely given to prisoners when they are incarcerated to make sure they do not have TB before putting them in with the general population, as to avoid creating an epidemic.

The thing I find odd about his story is that a TB skin test, in order to determine if it's positive or negative, has to be re-checked in 48-72 hours. Did they give it to him with the intention of having him come back for a re-check in 48-72 hours? That would be the only reason for giving him the test - otherwise it's pointless because you don't get results instantly.

My question is - does anyone know who this guy is? Does he have a name? Is he known within the community? Or is he just some random guy who showed up?