Fig. 6From: Expression of free radicals by peritoneal cells of sheep during the early stages of Fasciola hepatica infectionMean fluorescence intensity of NO production (DAF DA) in the peritoneal fluid of sheep uninfected (Neg Ctl, Group 1, a, b), infected (Group 2, a) and vaccinated sheep (Group 3, b). Values represent the mean ± standard deviation, SD. “a” indicates significant differences (P < 0.05) between groupsBack to article page