As for simply killing off MAP with a vaccine, does that really solve the problem of CD patients being unable to fight it off naturally that non CD people seem to manage....
If MAP is behind the inflammation, yes, if you removed MAP it would cure the patient. The genetic predisposition would still be there but the patient would be cured, people who are cured of leprosy or TB are also cured once you remove the pathogen, even though many still have a predisposition to it. For all intents and purposes, they are cured.
But I am apprehensive about this theory, especially about the numbers being thrown around that 90% of people with CD harbour MAP.
I was tested for MAP and it was negative, I know a few people who were tested and they were also negative for MAP. I was there when they did the culture readings which for MAP are done every X months since it grows so slowly, MAP is extremely slow dividing. By then the DNA test had already been negative, and the culture ended up negative too and after a year the test was stopped.
This has happened in studies too, whole groups of samples that all tested negative in tests.
In none of the 35 people with crohn's disease was MAP detected, and in all of the Johne's disease samples was MAP detected:
http://www.clinmedres.org/content/1/3/217.full.pdf
Why do some studies detect MAP and why do some don't. Why do some studies have 21 out of 30 CD positive for MAP and why are there 35 CD people negative for MAP in another study.
Are there different groups of patients, or are people just getting into contact with MAP by the environment and do people with CD simply need more time to clear MAP.
I said it in another post, of all the organisms that can infect macrophages, AIEC has a much better track record than MAP in tests. The Australian trial that failed to show any positive effect after long term usage of anti-MAP antibiotics warned clinicians to consider that treating a patient for a MAP infection might create resistance for other bacteria.
I don't know if MAP is involved at all, I do think that for us patients it is important that it is looked into.