In all, 62 people in 16 states became ill as a result of the epidemic. Twenty-five of them were hospitalized.

The diseases began at the beginning of October; the most recent illness would have started with symptoms on December 4th.

However, the US Food and Drug Administration continues its research on the cause of the outbreak and the farms involved.

The outbreak was first announced two days before Thanksgiving with a stern warning to consumers to stay away from all the Roman lettuces while an investigation was looking for the source of the bacteria.
A week later, on November 26, as illness continued, federal health officials determined that the disease was likely to be responsible for lettuce from the "northern central cropping regions". and Central California ". Consumers were informed that Roman from anywhere else, as indicated on a mandatory label, could be sold and consumed.

On December 6, the US Food and Drug Administration reduced the number of its borders to six counties in California and declared that the Roman from anywhere, but that the counties of Monterey, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz and Ventura were safe. However, the CDC maintained that "no common producer, supplier, distributor or brand of romaine lettuce has been identified" as being the source of the outbreak.

On December 13, the FDA and the CDC said that the investigation had identified the epidemic strain of E. Coli in sediment from an agricultural water tank located on a farm in Santa Barbara County, California.

For this reason, the FDA has announced that red leaf lettuce, green leaf lettuce and Adam Bros. cauliflower. Farming Inc., in Santa Barbara County, were recalled. Reminders were later issued for sandwiches and other products from Northwest Cuisine Creations and Fresh & Local, as they were made from reclaimed lettuce or cauliflower. At the time, the CDC had stated that contaminated lettuce responsible for diseases "should no longer be available".

Since then, only three new cases of E. coli related to this outbreak have been reported, according to the CDC. & # 39;

Canada has reported 29 cases of E. coli infection related to this outbreak. On December 24, Canadian officials determined that the epidemic was there.
It is the second home of E. Coli tied to romaine lettuce last year. The first was from March to June. Then, 210 people in 36 states became ill and five died. It was linked to Roman cultivated in Yuma, Arizona.

Lettuce is vulnerable to bacteria causing diseases such as E. coli because it is not usually cooked before being eaten. When products or other foods are cooked, E. coli can be killed by heat.