Here is one explanation:
Improvement of Lyme Borreliosis Serodiagnosis by a Newly Developed Recombinant Immunoglobulin G (IgG) and IgM Line Immunoblot Assay and Addition of VlsE and DbpA Homologues
The article is found here:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1233984/
Perhaps that might help you.
Can you post the results from your Western Blot? Sometimes Dr's that are not Lyme aware may say negative when we know its positive.
Always get a copy of your test results. They belong to you and you can bring them with you to other doc or LLMD .
Nazzy---- the link works for me. Did you highlight it then copy paste into the google query bar? The links here aren't always "live" so a person has to do that first
And to repeat what mojo said---- always get a copy of your test results. The doctor will give them to you in the States. Sometimes you have to ask for them first. I assume the NHS is the same.