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Bad water from canal caused E. coli outbreak, CDC says

Updates from CDC and the Food and Drug Administration all but officially declared the romaine lettuce E. coli outbreak over after 210 illnesses and five deaths over 36 states. (Associated Press)
Updates from CDC and the Food and Drug Administration all but officially declared the romaine lettuce E. coli outbreak over after 210 illnesses and five deaths over 36 states. (Associated Press)

The most widespread E. coli outbreak in the past 13 years appears to have been caused by bad water, the Centers for Disease Control and Protection said.

Updates from CDC and the Food and Drug Administration all but officially declared the romaine lettuce E. coli outbreak over after 210 illnesses and five deaths over 36 states. Both organizations said earlier the tainted romaine lettuce from the Yuma, Arizona, region should have been out of circulation.

So, aside from a final counting of the sick, only the how and why remained for the CDC and FDA to tell the public. And that appears to come down to the water.

“CDC laboratory testing identified the outbreak strain of E. coli O157:H7 in water samples taken from a canal in the Yuma growing region,” the CDC said. “(Whole genome sequencing) showed that the E. Coli O157:H7 found in the canal water is closely related genetically to the E. coli O157:H7 from ill people. Laboratory testing for other environmental samples is continuing. FDA is continuing to investigate to learn more about how the E. coli bacteria could have entered the water and ways this water could have contaminated romaine lettuce in the region.”


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