Hi evianangel--
IMO, it depends on what you need more confirming information for. Previously, CD57 scores used to be considered a good measure of immune function and when the scores are low, they were thought to help support a clinical diagnosis for Lyme when the patient has a seronegative response to serology tests for Lyme (which measure immune response, not any detection of the infection itself). But the word these days on CD57 is that they are unreliable.
More and more, MDs are finding that they are less and less able to tie CD57 score to any specific immune function or response to infection loads and/or treatment. In that respect, they actually tell you very little. But many MDs still use them because insurance companies are WAY behind.
So, a low score could help where a negative WB hurts and/or support the need for continued treatment.
My CD57 score has improved only 15 points in 3 yrs. It started at 42, went down to 37 and is now at 57 and I'm about
85% healed and started with not being able to walk. My LLMD still does them because the insurance company likes them. If I had to pay cash for them and was not relying on insurance coverage, I wouldn't bother with them.
Here is an example of a non-scientific study one MD did showing a lack of reliable association with immune function, level of infection and effectiveness of treatment. He even tested patients multiple times throughout the day and found that the CD57 score jumped around:
www.publichealthalert.org/role-of-c3a-and-c4a-complement-proteins-in-chronic-lyme-disease.html-p
Post Edited (Pirouette) : 10/17/2016 7:12:13 PM (GMT-6)