It is more common to have a co-infection with lyme than not. I couldn't find the exact statistic. Just info stating that it is common. /www.ncbi.nlm.nih.gov/pubmed/26613664
If you are still having symptoms after a year of treating lyme, it might be a good idea to question your Dr.'s evaluation of not having co-infections. Have you checked this symptom list which compares lyme and co-infections? Does any of it sound like you? www.lyme-symptoms.com/LymeCoinfectionChart.html
It would be relatively inexpensive to at least give some of the co-infection herbs in and see if you have a herx reaction. If you do, you know you are on to something. With this stuff, to me, it makes much more sense to navigate treatment off of symptoms and exposure.
Quoting Burrascano's work "In Babesiosis, no single test is reliable enough to be used alone."www.lymenet.org/BurrGuide200810.pdf
Lyme Forum Moderator: IGEN-X IGM ++ band 41, ind band 31 IGg, ind band 41. Clinical diagnosis of lyme by CMD and Naturopath. Used Herbal protocol: Buhner, Chinese herbs, Zhang herbs, support from this community. Symptoms 85% reduced. Targeted in this order: lyme, bart, babesia, cysts/bio-films, candida & fungus /playfreshional.wordpress.com/probable-lyme-and-co-infections/