I will start off saying, this is just something I was told by my son's GI doctor today. I have no sources and honestly in all the reading I've been doing since learning it was even a possibility that my youngest has Celiac I haven't come across any mentions of it. Though, I will admit, I tried to stay away from all the related disorders and such because I didn't want to freak myself out even more.
So, I have no sources other than "I heard it from" but maybe someone else has a source or something.
We went in to the GI today to get the result of my son's endoscopy. Biopsy results showed up negative but due to some scalloping we've decided to go ahead and try the gluten-free diet (his tTG IgA was a weak positive). During the course of our discussion we decided to do another blood test for the EMA IgG, genetics and apparently she wants to run a test to make sure his Hep B vaccine has done what it needs to do. She said she was part of a study and they found that 56% of the patients were found to not have the protection from the vaccine that needed to be there...or was expected to be there.
I can't remember why she said the issue was there but I know it had something to do with gluten....either the antibodies your body produces or that there was gluten in the vaccine....that part's kind of fuzzy...there was a lot of information being thrown at me and that was one of the few things that was really new information.
But, even though, I'm not an expert...by any means...and I know we're supposed to follow info like this up....I don't even know where I would find reputable information that I could post here. Our GI is a Pedi GI @ UW Children's Health in Madison, WI....if that helps anyone.