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Lyme Disease Message Board

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I believe it was Dr. Burrascano, before he retired, who was a proponent of using CD57 as a marker for Lyme, but it has been found not to be definitive of LD.

CD 57 measures the NK cells, but things other than lyme can affect this number. Further, the value can go up or down depending on the day one is tested and whether you are herxing at the time or in more of a plateau. I have always had a normal to high CD 57, this when I was always testing positive for LD!

Bottom line, I wouldn't try to "hang your hat" on the CD 57 test. As I previously said, clinical symptoms are the best indicator.


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