Abstract
A simple solid-phase enzyme immunoassay is described for the detection of antibody classes showing activity against foot-and-mouth disease (FMD) virus in bovine sera. The assay achieves a preliminary separation of the specific class of antibody from other serum proteins through immuno-adsorption to class-specific immunoglobulin-coated wells of micro-titre plates. The specific antibody is reacted with FMD virus, which is then detected by an enzyme-labelled anti virus IgG.