- E.J. Mundell
- Posted May 17, 2018
More Cases in Lettuce-Linked E. Coli Outbreak, But End May Be Near
WEDNESDAY, May 16, 2018 (HealthDay News) -- Twenty-three more illnesses caused by an E. coli outbreak tied to tainted romaine lettuce were reported by U.S. health officials on Wednesday.
That brings the total number of cases to 172, the U.S. Centers for Disease Control and Prevention said.
But there was potential good news: The outbreak, tied to lettuce grown near Yuma, Ariz., might be nearing its end.
That's because "romaine lettuce from the Yuma growing region is past its shelf life and is likely no longer being sold in stores or served in restaurants," the CDC noted. "The last shipments of romaine lettuce from the Yuma growing region were harvested on April 16, 2018, and the harvest season is over."
In fact, the agency said the newest cases all occurred among people who first reported becoming ill two to three weeks ago.
That's "still within the window when contaminated romaine was available for sale," the CDC said, and "the latest reported illness started on May 2."
The outbreak has been caused by a particularly virulent strain of E. coli O157:H7. Of the 157 cases reported with good information, 75 (48 percent) have resulted in hospitalization, and 20 people have developed a dangerous form of kidney failure.
"This is a higher hospitalization rate than usual for E. coli O157:H7 infections, which is usually around 30 percent," the agency noted.
So far there has only been one death recorded, in California.
The CDC said three more states -- Iowa, Nebraska and Oregon -- have been hit by the outbreak, bringing the total number of affected states to 32.
The total number of cases by state are: Alaska, 8; Arizona, 8; California, 39; Colorado, 3; Connecticut, 2; Florida, 1; Georgia, 4; Idaho, 11; Illinois, 2; Iowa, 1; Kentucky, 1; Louisiana, 1; Massachusetts, 3; Michigan, 5; Minnesota, 12; Mississippi, 1; Missouri, 1; Montana, 8; Nebraska, 1; New Jersey, 8; New York, 5; North Dakota, 2; Ohio, 6; Oregon, 1; Pennsylvania, 21; South Dakota, 1; Tennessee, 3; Texas, 1; Utah, 1; Virginia, 1; Washington, 7; Wisconsin, 3.
In April, the CDC warned Americans to toss out any romaine lettuce they might have bought in stores. The agency expanded its warning from just chopped romaine to any and all forms of the lettuce.
The sweeping advisory came after information tied to some new illnesses prompted health officials to caution against eating all kinds of romaine lettuce that came from Yuma.
The agency also warned restaurants not to serve romaine lettuce to customers.
Genetic testing shows that the E. coli strain involved in the outbreak produces a specific type of "Shiga toxin" that causes more severe illness, according to Matthew Wise, the CDC deputy branch chief for outbreak response.
This is the biggest Shiga-toxin producing E. coli outbreak since a 2006 outbreak linked to spinach grown in the Salinas Valley in California, Wise said recently.
The CDC stressed that E. coli illness can be very serious, even deadly.
Usually, illness sets in "an average of three to four days after swallowing the germ. Most people get diarrhea [often bloody], severe stomach cramps and vomiting," according to the CDC.
For most, recovery will occur within a week, but more severe cases last longer.
"Talk to your doctor if you have symptoms of an E. coli infection and report your illness to your local health department," the agency said.
Find out more about E. coli illness at foodsafety.gov.
SOURCES: May 16, 2018, news release, U.S. Centers for Disease Control and Prevention, and CDC news briefing, April 27, 2018, with Stic Harris, director, Coordinated Outbreak Response and Evaluation Network, U.S. Food and Drug Administration, and Matthew Wise, deputy branch chief for outbreak response, CDC; April 27, 2018, news release, U.S. Centers for Disease Control and Prevention; Produce Marketing Association
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