Many strains are harmless residents. Some cause diarrheal illness. Explore its illustrative 3D model, human context, and sources.
E. coli can live in the human intestine. Most kinds are harmless, while some cause illness. This profile covers diarrheagenic strains: disease potential and symptoms depend on the strain, rather than the species name alone.
Shiga toxin-producing strains can cause hemolytic uremic syndrome, a serious kidney complication. This does not describe every E. coli strain.
Original procedural Gram-negative rod with subtly irregular outer shading, peptidoglycan, plasma membrane, symbolic nucleoid and 70S ribosomes. Short, thin fimbriae/pili are shown separately from longer peritrichous flagella, consistent with the E. coli micrograph in Medical Microbiology, Structure Figure 2-3, and the diarrheal E. coli chapter. This is a representative motile, fimbriated phenotype, not every strain or a reconstruction of the O157:H7 CDC image. Appendage expression varies with strain and conditions. Displayed count, thickness and minor surface irregularities are visual conventions, not measured morphology or molecular topography. No capsule is assigned. Colours, dimensions, contents, layer spacing and replication stages are schematic. The animation does not reconstruct appendage assembly or inheritance. The approximately 20-minute culture interval is a separate K-12 MG1655 laboratory reference, not a measurement of this representative phenotype or growth inside a human. Independent scientific review pending.
Source check: 2026-09-19. Educational content; independent scientific review remains pending.