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. 2004 Jan;72(1):478–488. doi: 10.1128/IAI.72.1.478-488.2004

FIG. 4.

FIG. 4.

TEM of E. coli K1 interactions with macrophages. TEM demonstrating wild-type (A and C) and traJ mutant (B and D) E. coli K1 interactions with macrophages at a magnification of ×14,000. (A and B) Extracellular E. coli K1 binding or associating with macrophages (wild-type E44 [A] and traJ mutant JLB9 [B]) is shown. (C and D) Intracellular E. coli K1 was found within membrane-bound vacuole-like structures. Wild-type E44 in spacious phagosomes (C) and JLB9(traJ) in smaller and tight vacuoles (D) are shown.