... test, using colloidal gold immunoassay method, to detect the antibody against swine FMD virus in whole blood, serum and plasma. The whole test ... show the high titer of the antibody against porcine FMD virus, which is enough to resist the strong virus; b. the color of ... the the titer of the antibody against porcine FMD virus is not enough to resist the strong virus, it is better to perform ...