I thought this was an interesting research finding, though only tangentially related to T1D:
There is also a celiac vaccine in Stage II clinical trials:
https://celiac.org/about-the-foundation/featured-news/2018/09/immusant-announces-initiation-of-phase-2-clinical-trial-of-therapeutic-vaccine-for-celiac-disease/
It’s an interesting target for a vaccine given that you can essentially prevent all disease symptoms by avoiding gluten. But I suppose that avoiding getting “glutened” is actually a pretty nice and important thing for people who have celiac.