Here is the site that I use to help interpret these tests:
www.oocities.org/hotsprings/oasis/6455/western-blot.txt You can go there to find supporting Pubmed articles showing what these bands represent.
An IgM result means that you have an active infection. It once was thought to mean an 'early' infection, but has since been revised. IgG means that the infection is at a later stage.
The more +'s you have beside a number, the stronger the reaction.
IND means indeterminate - not negative, but not quite strong enough to be "fully positive". But it means that you reacted on those bands and should be considered, especially when they are Lyme specific bands.
A "Lyme specific band" means specific for Borrelia Burgdorferi, sensu stricto - Lyme disease in the strictest sense. There are only
two on the over 300 known strains of Lyme that is considered Bb, ss. Borrelia burgdorferi and Borrelia mayonii. Nothing else will turn a Lyme specific band positive other than Lyme disease - - even though there are over 100 different strains of Borrelia in the US that cause human illness.
Bands 18 & 41 (whether in IgM or IgG) are indicative of the tail of the bacteria, which can cross react with other Spirochetal bacteria such as Relapsing Fever, Pintas and Yaws, and Syphilis.
For some reason there is some that no longer believe that Band 31 is Lyme specific. I really don't understand this as no one can cite any credible sources other than their doctor or Igenex, but no one knows where they got their information. There are actually quite a few PubMed articles showing that Band 31
is Lyme specific:
www.ncbi.nlm.nih.gov/pubmed/1520966www.ncbi.nlm.nih.gov/pubmed/9440203www.ncbi.nlm.nih.gov/pubmed/8406878www.ncbi.nlm.nih.gov/pubmed/8005219www.ncbi.nlm.nih.gov/pubmed/10030131And more references can be found here:
www.reocities.com/HotSprings/Oasis/6455/western-blot.txt Band 31 indicates OspA (Outer Surface Protein "A"), and as I said, it's Lyme specific.
Band 39 indicates BmpA (Bacterial Membrane Protein "A") and is Lyme specific.
Band 58 is thought to be Borrelia Afzelii - a European strain of Lyme.
Band 83 indicates a high molecular mass protein that is Lyme specific.
Band 93 is an immunodominant protoplasmic cylinder antigen that is Lyme specific.
So considering you have 4 bands that are Lyme specific that are/should be considered Lyme specific, I'd say that there's not much question to if you have Lyme disease and should continue treatments.