Unfortunately, there is very little information regarding clinical studies for people with autoimmune diseases and taking vaccine. There is conflicting information regarding immunity after contracting COVID. Some very reliable sources say that it lasts longer than the vaccine. Some say vaccine lasts longer. We do know vaccines do not last that long. We know this to be true now because of all the breakthrough cases. (Booster requirement) Yes, I believe in the vaccine, but, because of the very many variables, such as medication one is taking, current health, etc., not all autoimmune diseases are the same and should not be lumped together. Decisions should be researched and reached with your own physician.