I thought that might be the case, Barb. Welcome. I invite you to follow the Transplants group here: https://connect.mayoclinic.org/group/transplants/

You'll find an amazing group of supportive and knowledgeable members to connect with.

To answer your question, I moved your questions to this discussion called "No or Few Antibodies after COVID Vaccination." I suggest reviewing the past comments and joining in these discussions related to the vaccine and antibodies:
- Antibody tests and vaccinations in transplants https://connect.mayoclinic.org/discussion/antibody-tests-and-vaccinations-in-transplants/
- Moderna Vaccine not Creating antibodies for Transplant Patients https://connect.mayoclinic.org/discussion/moderna-vaccine-not-creating-antibodies-for-transplant-patients/
- Transplant: Third dose, no antibodies: How are you staying safe? https://connect.mayoclinic.org/discussion/transplant-third-dose-no-antibodies/

Allow me to bring some fellow transplant recipients to respond to your question regarding what next after the third dose and what further studies are being done. Please meet @loribmt @athenalee @estrada @hello1234 @mollyv @jocko @jennifer0726 to name a few.

Barb, how are you staying safe?

Hello @barbtc. There is an ongoing study that John Hopkins is conducting on transplant recipient development of antibodies following Covid vaccinations. Results from study participants receiving the third shot showed some development, but it widely varies depending on several variables. Here’s a link to the study:
https://transplantvaccine.org/
The most recent results were presented in the July 8 webinar, which is posted- https://transplantvaccine.org/study-results-and-webinars/

John Hopkins is also studying other potential ways the vaccine may help us build immunity, including B cells snd memory cells.