There is a connection to virus, and some dang disease following it. I got a virus of some horrible nature when I was 29. After 20 or so doctors, wondering why my hair was falling out in clumps, I went to Mayo clinic. Auto immune diseases have this connetion. I now have 4 different auto immune problems. fun fun fun. In my case my t @ B lymphosytes are not in sink, and attack me as a forien object. I wish you all the best. I am sorry you have MG ginnie