I've never actually talked to anyone who has both illnesses at the same time, but it is possible to have more than one issue going on at once. There's never been anything done on a wide scale, to my knowledge, to show statistics to what you are asking about. There has been some small studies done to see if people with MS actually have lyme instead and those studies say its only a very small percentage of people. There's a lot of controversy between MS and Lyme but anyone going through testing for MS should consider any of the other possible mimicers of the illness including Lyme's disease.
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