They all provoke the immune system to generate antibodies (and T cell responses and other responses) that recognize active infections, but those go into action only when that infection is actually recognized (which can be a false positive with disastrous results - see the 2015 science article about pandemrix)
They have no known mechanism of action when there are no recognized antigens. If they do, that’s new science, and applying Sagan’s Criterion: extraordinary claims require extraordinary evidence.
Considering autoimmune disorders are barely understood at this point (and most have very little available in terms of treatment), it isn't such an extraordinary claim.
They have no known mechanism of action when there are no recognized antigens. If they do, that’s new science, and applying Sagan’s Criterion: extraordinary claims require extraordinary evidence.