EBV is an insidious virus. In addition to growing evidence that it's associated with MS, it's also associated with chronic fatigue syndrome and other sets of sy

EBV is an insidious virus. In addition to growing evidence that it's associated with MS, it's also associated with chronic fatigue syndrome and other sets of symptoms without a definitive, widely-accepted root cause, and even some cancers. If you ever had mononucleosis, you've likely still got EBV in your system. I had lymphoma and it might have caused that. It's particularly insidious in that it's common, spreads easily, and if it really is causing all these other problems, you might not know for decades, if ever.