245728.fig.002a
(a)
245728.fig.002b
(b)
Figure 2: Confirmation of PCV 2 antigen in BOOP lesion. PCV 2 antigen signals appeared strong positive in the foamy alveolar macrophages ((a)-(b), arrow head) and intraluminal plugs of two representing BOOP lesions. The other lung sections in five individual BOOP pigs revealed the similar results ( , six replicates in each individual pig; ).