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. 2022 Aug 18;10(5):e01748-22. doi: 10.1128/spectrum.01748-22

FIG 6.

FIG 6

Virulence of strains expressing different levels of mcr-1. (A) Mouse systemic infection by intraperitoneal injection in the presence of 5% mucin. Infection doses: E. coli K12, 3.0 × 106 CFU/mouse; QH0002, 3.7 × 106 CFU/mouse; QH0004, 3.3 × 106 CFU/mouse; QH0005, 3.3 × 106 CFU/mouse; and QH0007, 1.9 × 106 CFU/mouse; n = 10. (B) Mouse systemic infection by intraperitoneal injection in the absence of 5% mucin. Infection doses: E. coli K12, 1.6 × 109 CFU/mouse; QH0002, 1.8 × 109 CFU/mouse; QH0004, 1.8 × 109 CFU/mouse; QH0005, 1.9 × 109 CFU/mouse; and QH0007, 1.0 × 109 CFU/mouse; n = 10.