TABLE 3.
Gross lymph node and lung lesions in control and inoculated pigs
| Group | Inoculum | No. of pigs with enlarged lymph nodesa
|
No. of pigs with gross pneumonia lesionsa
|
||
|---|---|---|---|---|---|
| 21 dpi | 42 dpi | 21 dpi | 42 dpi | ||
| 1 | PBS buffer | 2/5 (0.4) A | 0/5 (0.0) A | 0/5 (0.0) A | 0/5 (0.0) |
| 2 | PCV2 VP120 | 2/5 (0.4) A | 4/6 (1.3) B | 0/6 (0.0) A | 0/5 (0.0) |
| 3 | PCV2 VP1 | 5/5 (2.2) B | 5/5 (2.6) B | 2/5 (2.6) B | 0/5 (0.0) |
a
Five pigs from each group were necropsied at 21 dpi, and the remaining pigs were necropsied at 42 dpi. Values in parentheses are the mean scores of estimated lymph node enlargement (scored from 0 [normal] to 3 [severely enlarged and tan-colored lymph nodes]) and mean percentage of lungs affected by grossly visible pneumonia (0 to 100%). Different letters (A and B) indicate statistically different mean value score between groups (P < 0.05).