I took the 1st jab from Pfizer sadly, trusting in the SSPX and the Vatican essays about the jab. Later, when I came to this forum, I read the "Dominican priest destroys material cooperation..." and my soul weighed. I don't know if I really committed a mortal sin - I'm bad at moral theology, since I'm kinda scrupulous - but I know I won't take the 2nd jab anymore.