Fig. 4From: Production of virus-like particles of porcine circovirus 2 in baculovirus expression system and its application for antibody detectionTesting of the sensitivity of the I-ELISA. The PCV-2-positive sera were diluted in serial twofold dilutions from 1:10 to 1:1280, and the diluted serum was tested by I-ELISA.Back to article page