As of June 27, 2018, the CDC reported 210 people infected with the outbreak strain of E. coli O157:H7 were reported from 36 states.  Canada reported 8 sickened.

Illnesses started on dates ranging from March 13, 2018 to June 6, 2018. Ill people ranged in age from 1 to 88 years, with a median age of 28.

Sixty-seven percent of ill people were female.

Of 201 people with information available, 96 (48%) were hospitalized, including 27 people who developed hemolytic uremic syndrome, a type of kidney failure.

Five deaths were reported from Arkansas, California, Minnesota (2), and New York.

Here is what the FDA has told us all as of May 31, 2018:

Epidemiologic, laboratory, and traceback evidence indicated that romaine lettuce from the Yuma growing region was the likely source of this outbreak.

The FDA and state and local regulatory officials traced the romaine lettuce to many farms in the Yuma growing region. The FDA, along with CDC and state partners, started an environmental assessment in the Yuma growing region and collected samples of water, soil, and manure. CDC laboratory testing identified the outbreak strain of E. coli O157:H7 in water samples taken from a canal in the Yuma growing region.

Here is what we have figured out through litigation to date.  More information will be added in the coming weeks: