The docs on this board would be better equipped to answer this question, but I'll take a stab at it. I read a great book called "Your Symptoms are Real" by a neurologist named Benjamin Natelson. He wrote that the basic lyme test (ELISA) is sufficient. If the ELISA is positive, then another test (Western Blot) is done to confirm the diagnosis.Since you live near Lyme, Connecticut, though, I would bring it up with your doc again. He/She is probably very familiar with the Lyme tests and their degree of accuracy.Terri