The Good and the Bad (IMAGE)

WashU Medicine

The Good and the Bad

Caption

Differences in the way they use their genes cause different strains of the E. coli bacterium to take on different hues. The beaker in the foreground contains strains of bacteria linked to urinary tract infections, while the background beaker holds more benign strains of bacteria isolated from the gut. Scientists are hoping to develop drugs that specifically target infection-causing strains of bacteria like those in the foreground beaker.

Credit

Michael Purdy/Washington University School of Medicine in St. Louis

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