I was recently diagnosed with Lyme following ELISA and Western Blot exams. I only had one positive band (23), but it was specific for Lyme disease. They started me on some oral Doxycycline and will get me going on some IV Rocephin here soon. Eric is absolutely correct regarding Lyme. It is very, very, very difficult to find by conventional testing methods (i.e., ELISA, Western blot, PCR, spinal tap). Even if you are lucky enough to have a Lyme specific band show up on the blot, many doctors will not diagnose or treat you unless you have the # of bands established by the CDC for reporting purposes. The CDC cautioned doctors against using the criteria for clinical diagnosis, however, but most doctors still follow the criteria and this may be driven by insurance companies. It does not end there though! If you are diagnosed with Lyme, you will normally be treated in accordance with the IDSA guidelines, which many believe are too conservative for chronic Lyme cases. For example, even if you show neuro symptoms (i.e., twitching, brain fog, neuropathy), some doctors will still start you off on oral ABX when you should be immediately on IV ABX. LLMDs (Lyme Literate Medical Doctors) follow the ILADS guidelines, which are much more aggressive with ABX treatment and for longer periods. The LLMDS will test for the co-infections and treat them individually with different types of ABX. One ABX (Flagyl) penetrates the cyst form of the lyme disease, which is one of the reasons it is so difficult to eradicate from your body. Many insurance companies will deny you treatment based on the IDSA guidelines, but I believe the tide is starting to turn in the ILADS favor. Igenix is a lab in Palo Alto California that tests specifically for TBD (tick borne diseases) including the co-infections. They are highly recommended by those in the Lyme community, and I will probably pay to have them do some complete testing, assuming I am denied by my insurance. I'll keep you posted.