SEM: Thank you for posting.
Unlike some here, I am not expert, and I don’t state opinion as fact...
However, I am linking to a woman who has 21 years of research and experience in the field of vaccines. She provides a very easy-to-understand summary of what MRNA PFE, and J&J jabs are and are not...
If you are not a Christian, please disregard the beginning 2 minutes and a couple of Christian references within the video:
https://www.youtube.com/watch?v=8iaKAWWGyWI
For those who think she is too simplistic, here is link to a much more detailed talk: She begins at 26:17
https://www.bitchute.com/video/NQCMvUBDN83O/
I am not anti-vax, but I am in no hurry to get the current offerings of COVID vaccines.
I'm in a hurry, but I'm an old fart and that still translates in 18-24 months before I "get around to it".