Figure 5From: The lipopolysaccharide outer core transferase genes pcgD and hptE contribute differently to the virulence of Pasteurella multocida in ducksPathological changes in ducks. Groups of ducklings (n = 4/group) were infected orally with approximately 109 CFU of the P. multocida WT strain or each mutant strain or with control PBS. The histopathological lesions in the spleen and liver caused by each bacterial strain were analysed by HE staining.Back to article page