Experimental grouping and relative clinical monitoring data of the challenged pigs.

(A) Schematic depiction of the in-contact challenge assay. The black box indicates a separate room. Different colours indicate different types of pigs. Each room included one non-TG pig that was injected with CSFV (NTG-In), three NTG pigs and three TG pigs. (B) Mortality and viremia in challenged pigs. The survival time of each pig is indicated by the length of the green bar. Red squares indicate the collection of blood samples. The terminal block colour indicates day and cause of death (black, found dead; blue, pigs (TG-4 and TG-5) euthanized for comparison to the dead NTG pig). The numbers for each day are the lg values of viral RNA copies present in the blood samples.