"Antibodies are tiny proteins- immunoglobulins, which attach to target areas found on the surface of the germ, Lyme in this case. Finding antibodies directed at a particular pathogen is like finding footprints in the sand. It says "Lyme was here," like a name etched on an old oak tree. It in no way proves that Lyme is still present in the body. This is key to understanding the divergent views held by the IDSA and ILADS."