I think I remember it being pretty reliable for the blood at the time of the draw, but you have to time it "just right" to catch the Lyme bacteria in the blood stream - they don't stay there, they only go there to replicate. That's why some people have cycling of their symptoms every 4 - 6 weeks, it's when the Lyme bacteria are back in the blood stream.
I did a search on the forum for those posts that talked about
Live blood analysis, if you are interested:
goo.gl/ez3KgM