Abstract
The solution-phase complex assay for toxins A, B, and E from Clostridium botulinum (Elcatech, Inc., Winston-Salem, N.C.) was modified to measure antibody. The addition of unlabeled polyclonal antibodies to a mixture consisting of toxin with chicken antibody and RVV-XA-labeled horse antibody reduces the sensitivity of detection of neurotoxin. This reduction in sensitivity can be used as a measure of the specific antibody titer.
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