About E. coli

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About E. coli Blog

E. coli found in spinach caused more severe illness

The San Francisco Gate reports that the strain of E. coli O157:H7 isolated from case-patients and bags of spinach during the most recent E. coli outbreak is more virulent than other strains of E. coli O157:H7.

Health officials are working to determine why this particular strain seems to have caused a more severe illness in individuals who consumed contaminated spinach, and whether the molecular make-up of this strain of E. coli differs from other strains of E. coli O157:H7.

Peter Gerner-Schmidt, a scientist at the Centers for Disease Control and Prevention who is investigating the outbreak, agrees that that this strain is probably a more dangerous strain than others. Research is under way to figure out why.

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