Thanks, Jerry for starting this new discussion to pick up where you, @tjgisewhite @estrada53 @rosemarya @danab @ca426 @contentandwell and few others went on a tangential side conversation about the development of a COVID-19 vaccine in the shingles vaccine discussion here:
https://connect.mayoclinic.org/discussion/shingles-vaccine-1/?pg=2#comment-416053
@rosemarya is right. It's too early to know.

From Mayo Clinic
"Global health authorities and vaccine developers are currently partnering to support the technology needed to produce vaccines. Some approaches have been used before to create vaccines, but some are still quite new.
- Live vaccines
- Inactivated vaccines
- Genetically engineered vaccines
Read more details here: https://www.mayoclinic.org/diseases-conditions/coronavirus/in-depth/coronavirus-vaccine/art-20484859

We are still months away from having a vaccine and several successful vaccines will be needed to provide coverage for the country and worldwide. Once we have a vaccine, Mayo Clinic will certainly provide guidance to transplant recipients.