I never tested for Bart, just went with a clinical diagnosis. There are over 20 different strains of Bart that have been identified so far. Since TBI Researchers lack funds, I don't suspect that we will know just how many are truly out there for some time - I believe that it is possible that is why Dr. Burrascano says BLO infections, maybe?
There are so many more symptoms that signify a Bart infection than just painful burning feet! Many knowledgeable LLMD's now say that if the CNS (Central Nervous System) symptoms are a lot more and more intense than the muscular ones, that Bartonella should be considered. There are also more and more of those same docs starting to say that in order for one to heal from Lyme that a Bartonella or Babesia infection must first be cleared.
Here is link that can take you to a pretty good list of Bart symptoms:
www.drjoneskids.com/Scroll sown until you see Bartonella on the left side of the page.
Hope this helps!!!