TABLE 1.

Percentages of lymphocyte subsets of PBMC among the different pig groups

Group (no. of pigs)Percentage (mean ± SD) of indicated lymphocyte surface antigen marker in PBMCa
CD4+CD8+CD4+ CD8+IgM+
PCV2 positive (24)5.0 ± 4.3 A17.6 ± 14.3 A1.4 ± 1.6 A8.0 ± 6.4 A*
    High PCV2 (17)b5.1 ± 4.4 A16.4 ± 13.7 A1.3 ± 1.2 A6.5 ± 6.5 C
    Low PCV2 (7)b4.8 ± 4.5 A20.5 ± 16.4 B1.7 ± 1.2 A11.6 ± 5.1 A
PCV2 negative (17)6.7 ± 3.8 A40.8 ± 18.7 C3.2 ± 2.9 B14.3 ± 9.6 B
Healthy control (8)15.2 ± 4.1 B27.2 ± 7.8 C5.2 ± 1.7 B12.5 ± 5.3 AB*
  • a Values followed by the same letter (A, B, or C) are statistically similar, while different letters for values within the same lymphocyte subset indicate significant differences in the mean values (P ≤ 0.05). *, P = 0.09.

  • b The PCV2-positive group was subcategorized with respect to the apparent level of PCV2 stained by the ISH technique.