Differentiation of foot-and-mouth disease virus strains using a competition enzyme-linked immunosorbent assay.

Foot-and-mouth disease virus isolates were compared using solid-phase competition and indirect microenzyme-linked immunosorbent assays. Results were compared to those obtained from complement fixation tests. Similar relationships between the isolates were obtained using the indirect enzyme immunoassay and complement fixation tests. The competition assay was more discriminatory and the results did not always correlate with the other two assays.