I have not encountered any Doctor Who will advise regarding what the wrists are of getting additional vaccines. I will put myself in that same boat as I am not a doctor and I’m not qualified to give medical advice. With that said, I have had four doses total. Two of each mRNA vaccines. It was not challenging to get them, but they also did not produce protection against the virus for me. I am a hand transplant and may take more anti-rejection medication than others so it’s hard to tell how to make sense of all of this. I’m going to protect myself as if it was day one of the pandemic and allow some time to go bye with great hope that somebody will finally be able to answer the question for all of us