The agency has not identified a common grower, supplier, distributor or brand.
Confirmed and suspected cases have been identified in Missoula, Flathead, Lincoln and Ravalli counties and include 3 hospitalizations.
Dr. Wells says there is an E.coli outbreak in eleven states and chopped romaine lettuce is the cause.
The CDC on Friday advised consumers anywhere in the United States not to eat and throw away any store-bought chopped romaine lettuce at home, including salads and salad mixes containing chopped romaine lettuce.
Chinese minister visits Japan for talks on N. Korea, regional issues
However, Kono warned there would be "no true improvement of Japan-China relations without stability in the East China Sea". Japanese officials said Kono and Wang agreed on the importance of maintaining the world's system of free trade.
Roy Keane speaks out on Cristiano Ronaldo following Juventus heroics
The closest Real Madrid came to scoring in the first half was a shot in the final seconds by Rafael Varane that hit the cross-bar. Substitutes: Lucas Vasquez (for Casemiro, 45) 6, Marco Asensio (for Bale, 45) 6, Mateo Kovacic (for Modric, 75) 6.
Heavy rainfall and freezing rain on the way for Windsor region
He says the storm's "impressive rainfall totals" could produce a total of 3 inches of rain and ice melt through late Monday. Drivers were urged to take extra care, as gusty winds and broken tree limbs could add to the danger on icy roads.
Many people prefer romaine to iceberg lettuce, because the romaine has a lot less water and usually lasts much longer in the fridge. Cases of illness showing E. coli symptoms have been reported in Connecticut, Idaho, Illinois, Michigan, Missouri, New Jersey, New York, Ohio, Pennsylvania, Virginia, and Washington.
Information collected to date indicates that chopped romaine lettuce from the Yuma, Arizona growing region could be contaminated with E. coli O157:H7 and could make people sick.
This is not the first time romaine lettuce were linked to the spread of E. coli.
"Consumer Reports is making this recommendation given the potentially fatal consequences of E. coli, the fact that there are still several unknowns about this outbreak, and that no type of romaine has been ruled definitively safe by government officials", said James E. Rogers, director of food safety research and testing at Consumer Reports.
Colonies of E. coli bacteria grown on a Hektoen enteric (HE) agar plate are seen in a microscopic image courtesy of the U.S. Centers for Disease Control (CDC). While none of the cases reported have been linked to Fresh Food products, the company said its concerned that its romaine supplier may have been involved in the outbreak. More adverse cases would lead to bloody diarrhea, dehydration and even kidney failure.