This article is from 2017, I’m sure there have been more advances in technology. I believe this should answer your questions.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5492011/
Interesting. Not comforting.
I expect we will soon see some changes to the definitions of GMO to get around what appears to be one of the more substantial challenges to this approach.
In passing, I note the transgenic peas. Then I thought about the various meat substitutes utilizing pea protein. Another reason to avoid that stuff.
Still: they can change the plant. Some plants can transmit the antigens. Some immune response (would that manifest as a food allergy??) occurs.
I only hope there continues to be resistance to this delivery system. I doubt the pharms will simply release this into the ecosystem. They will want to be compensated and so the stuff will cost more and be identified.
For now. Who knows how desperate they are to change us all?
Thanx for the link. While I crave information, in this instance I almost wish to go back to ignorance.