Table 3.

Sensitivities of four commercially available immunoassays for detection of GXM of different serotypes

ImmunoassayAssay formatbMinimum concn of GXM (ng/ml) producing a positive resulta
ABCD
CN6MU-11844093429824066127M0024
Immuno-MycologicsLA243227684322604606263
Meridian CALASLA18205222>2,0004703604465
InvernessLA38NTc64NT>2,000940>2,00050NT
Meridian PremierELISA35222521>2,000>2,000>2,000900630
  • a Results are shown for GXM isolated from different strains of each serotype. >2,000, GXM of some strains of serotype C produced negative results at all concentrations up to 2,000 ng/ml.

  • b LA, latex agglutination; ELISA, antigen capture sandwich enzyme-linked immunosorbent assay.

  • c NT, not tested.