Thursday, 21 March 2019

FDA report: Investigation of the California-linked romaine lettuce outbreak of E. coli O157:H7 in November 2018


The FDA reported the results of California-linked romaine lettuce outbreak of E. coli that caused the removal of products from shelves just before Thanksgiving. The CDC found one match to the outbreak strain of E. coli O157:H7 in the sediment of an on-farm water reservoir, used for irrigation by Adam Bros. Farming, Inc., in Santa Barbara County. The strain was not detected in any other samples collected during this investigation.

On December 17, 2018, the farm issued a recall of romaine lettuce and other products (red leaf lettuce, green leaf lettuce and cauliflower) that could be contaminated due to use of water from the same reservoir. Currently, the FDA believes that the use of water from the reservoir was the source of the lettuce contamination, since the outbreak strain of E. coli O157:H7 was found in sediment from the reservoir and in no other sampled locations. This does not explain how lettuce grown on other farms got contaminated.. .… Read More

Posted by Dr. Tim Sandle, Pharmaceutical Microbiology

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