Roles of iron acquisition systems in virulence of extraintestinal pathogenic Escherichia coli: salmochelin and aerobactin contribute more to virulence than heme in a chicken infection model

Table 1 Distribution and severity of histological lesions in heart, liver and lung stained with HE at 24 h post-infection in chickens challenged with wild-type strains and isogenic mutants

Strain	Heart	Liver	Lung
E058	+++	+++	+++
E058Δ chuT	+++	++	+++
E058Δ iroD	-	-	-
E058Δ iucD	-	+	++
E058Δ chuT Δ iroD Δ iucD	-	-	-
U17	+++	+++	+++
U17Δ chuT	+++	+++	+++
U17Δ iroD	-	-	-
U17Δ iucD	+	+	++
U17Δ chuT Δ iroD Δ iucD	-	-	-

ISSN: 1471-2180