FIG. 3.

Extent of vascular necrosis (percent necrotic arteriolar profiles per tissue section) in relation to peak verocytotoxin titer in subclinical pigs inoculated with STEC (n = 25). Samples were considered to be positive for Stx2e if the Vero cell titer was ≥6 log₂ units and the sample (or another sample of the same type from the same pig) was neutralized by a bovine polyclonal antibody against Stx2e but was not neutralized by fetal calf serum. The line indicates the maximum nonspecific verocytotoxicity of blood.