The Lyme Western Blot is a qualitative immunoassay in which antibodies specific to the B. burgdorferi antigens on a membrane strip are visualized. It is a qualitative test and is generally more sensitive and specific than the ELISA and IFA tests.
IgM antibodies may reflect a relatively recent Lyme Disease infection and usually disappear after eight weeks post-exposure. However note that IgM antibodies may also be detected in individuals who do not have Lyme disease.
IgG antibodies are typically a sign of an older infection. IgM antibodies usually disappear after eight weeks post-exposure, whereas IgG remains in the blood for a very long time.
Download and print your pathology form from your i-screen dashboard.
Take your form to one of our affiliated collection centres to have your sample taken.
You do not need to fast for this blood test.