Gold Standard Diagnostics' newest Lyme assay includes the recombinant antigens VIsE and OspC to achieve excellent sensitivity and specificity; the sensitivity is comparable to a standard first tier screening assay and the specificity is comparable to an immunoblot.
The B. burgdorferi lgG/IgM VIsE-OspC assay uses the GSD Standard Lyme EIA protocol with a 15/15/15 incubation.
The Modified Two-Tiered Testing algorithm (MTTT) for Lyme Disease diagnosis is based on two EIA tests. This is an alternate option to the Standard Two-Tiered Testing algorithm (STTT) in which a positive screen result is confirmed with an immunoblot.
Using the B. burgdorferi lgG/IgM VlsE-OspC test as the first tier in combination with a second GSD Lyme EIA as the second tier in the MTTT algorithm, we maintain > 98% specificity while demonstrating a nearly 20% increase (1) in Early Lyme Disease detection compared to the STTT.