Congrats JK! At least it’s something. So far as I’ve read, I don’t think there’s a known magic number. But, coupled with masking, sanitizing, and being cautious it is probably about the best us transplant people can hope for. Sadly, we need to rely on ourselves mostly, as well as our families, friends, acquaintances, and ultimately society to be vaccinated to protect us. Risk is going to always be a part of the equation no matter where we go, so I’m hoping you can be assured by your antibodies developing so that you can visit your new grandchild!