Fig. 2From: International proficiency trial for bovine viral diarrhea virus (BVDV) antibody detection: limitations of milk serologyResults of the neutralization tests. The sera were analyzed by the participating laboratories against diverse BVDV-1 isolates (black), against BVDV-2 (blue), or against BDV (green). All results of a particular participant are depicted with the identical letterBack to article page