If there is a major outbreak, then yeah maybe getting vaccinated could be Bodhisattva activity (perhaps H.H. the Dalai Lama was administering them in that Youtube video because there was a major outbreak, and he knew that the vaccines he was administering were not full of the garbage listed in the pic I'm going to post below...).
Nowadays though, to get vaccinated would in many cases be in violation of the Tantric precepts:
In Enlightened Journey, Tulku Thondup wrote:"To afflict one's own five aggregates, which are the Buddha families. One should not abuse one's own body but take care of it."
Why would it be in violation of the above Tantric precept?
Here's part of the reason:
Other reasons are mentioned within the links on the dangers of vaccines posted throughout this thread (such as http://www.vaccinationcouncil.org/ etc.), which, I ask again, did anyone even bother to read through them at all?
"...'herd immunity', a concept which with regards to vaccination, and contrary to prevalent beliefs, does not rest on solid scientific evidence.”
And like I'd said before, as long as nobody here is trying to make vaccines mandatory, then to each their own.