I noticed no one one mentioned spontaneous CIDP; CIDP without a causative disease. I can only guess at a causative disease in my case. I've led a rough and tumble life of vehicle accidents, broken bones, sports injuries and risky and stressful behavior... for 50 years.
Just a supposition, but it appears that a primary disease clicks on, antibodies activate that cures or mitigates that primary disease, but then clicks on an autoimmune attack in the form of CIDP or GBS that won't click off... ever! So, to deduce, one might say that all examples written in this thread are the causes of CIDP. Mercury, sulfur, alcohol, stress... these and many more elements of life are causative when ingested, injected or internalized; producing an iterative disruption of coding on the IgG antibody ??? FcyRIIB, I think it is called.
I find it very interesting (and very disturbing) that I have an accompanying disease called MGUS. This is a precancerous condition that seems to tag along with CIDP, or maybe it's visa-versa. There is a complication called, paraneoplastic syndrome, caused by a monoclonal gamapathy that could be causing my peripheral neropathy (please correct me if I've gotten this incorrect). More tests are coming up for me.
Dose anyone else have this blood cancer complication (MGUS) that accompanies their CIDP?
BTW- a flu shot is designed to prompt an immune response, on a small scale, but in some people, like you and me, some organic chemistry at the nano level is just not getting the right instructions.
At 240 grams/month of IgG @ 120 grams, every two weeks... and yet, I only get 6-7 days of remission from some very gnarly CIDP symptoms!