Fig. 6From: Nanobody-horseradish peroxidase fusion protein as an ultrasensitive probe to detect antibodies against Newcastle disease virus in the immunoassaySpecificity the cELISA for detecting anti-NDV antibodies using the NDV-Nb5-HRP fusions as a probe. a Distribution of the PI values from the cELISA to detect the clinical negative chicken sera for anti-NDV antibodies. b Evaluation of the cELISA detecting the antibodies against other chicken disease viruses, including IBV, AIV, IBDV, and avian HEVBack to article page