Reactivity in the Venereal Diseases Research Laboratory test and the Mercia IgM enzyme immunoassay after treatment of early syphilis McMillan A et al. - The aim of the study was to compare reactivity in the Mercia immunoglobulin M enzyme immunoassay (IgM EIA) and the Venereal Disease Research Laboratory (VDRL) after treatment of 229 previously untreated patients with early syphilis. The Mercia IgM EIA is as sensitive as the VDRL in monitoring treatment of primary syphilis but not as sensitive as the finding of a four-fold or eight-fold decrease in VDRL titre in patients treated for secondary or early latent infection. [more...]
