Serodiagnosis of rabies by dot immunobinding assay

A dot immunobinding assay that uses inactivated antigen for the detection of rabies viral antibodies was compared with the rapid fluorescent focus inhibition test. Results of testing pre- and postvaccination sera from humans (n = 33) and canines (n = 22) were identical for both tests. Endpoint titers of positive sera also were approximately the same by both methods. When a mouse monoclonal antibody was used, the dot immunobinding assay antigen was shown to possess detectable rabies virus glycoprotein and core antigens.