Fig. 2.

Viral load (log10 copies per reaction) of PAstV3. The copy number for the positive PAstV3 samples in herd 1–4 for case and control pigs. The straight line shows the mean value

Viral load (log10 copies per reaction) of PAstV3. The copy number for the positive PAstV3 samples in herd 1–4 for case and control pigs. The straight line shows the mean value