Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cell proliferation assay. Culturing of PBMCs from the 4-week-old PCV3-inoculated, PCV3-KLH-inoculated, and sham-inoculated piglets at the indicated time points after PCV3 inoculation was performed three times in the presence of PHA (1 μg/ml). After 72 h, MTT reduction was applied to evaluate the proliferation. Data are presented as the means ± SDs. *, P < 0.05; **, P < 0.01.
