Fig. 4.

Viral copies in mesenteric lymph node (A), inguinal lymph node (B), lung (C) and bone marrow (D) taken from pigs infected with PCV2b for 8 weeks and subjected to different environmental stresses. Pigs were infected with PCV2b (V) and subjected to high stocking density (V SD), high temperatures (V T) or both (V SD T). Tissue samples were collected post-mortem at 8-weeks post-infection and tested for viral load by qPCR. Values are expressed as mean ± standard error of the mean (SEM) PCV2 copies numbers per ng DNA.