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First Death Reported in E. Coli Outbreak Tied to Romaine Lettuce

By E.J. Mundell

WEDNESDAY, May 2, 2018 (HealthDay News) -- The first death from an ongoing outbreak of E. coli tied to romaine lettuce has been reported in California, federal health officials said Wednesday.

The outbreak -- tied to lettuce grown in Arizona -- has now also spread to half of the 50 states, with 23 more cases reported since the last update on Friday, the U.S. Centers for Disease Control and Prevention said.

So far, a total of 121 cases of illness caused by a particularly virulent strain of E. coli O157:H7 have been reported.

"We have many lines of evidence suggesting to us right now that all of these illnesses are connected in some way through romaine grown in the Yuma region [of Arizona]," Matthew Wise, the CDC deputy branch chief for Outbreak Response, said during a Friday news briefing.

The U.S. Centers for Disease Control and Prevention said three more states -- Kentucky, Massachusetts, and Utah -- have been hit by the outbreak, bringing the total number of affected states to 25.

Illnesses have often been severe. Of the 102 patients the CDC has good information on, 52 (51 percent) have required hospitalization, the agency noted.

"This is a higher hospitalization rate than usual for E. coli O157:H7 infections, which is usually around 30 percent," the agency said. "Health officials are working to determine why this strain is causing a higher percentage of hospitalizations."

Besides the death recorded in California, 14 patients have developed a dangerous form of kidney failure, the agency said.

E. coli illnesses that occurred at a correctional facility in Alaska have been traced to lettuce grown at Harrison Farms, according to Stic Harris, director of the FDA's Coordinated Outbreak Response and Evaluation Network.

Speaking at the Friday news briefing, he stressed that other area farms could also be affected.

"We are investigating dozens of other fields as potential sources of the [tainted] chopped Romaine lettuce," Harris said.

On April 20, 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 -- whole romaine, romaine in mixed salads, etc.

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, where the outbreak began.

The agency also warned restaurants not to serve romaine lettuce to customers.

And while the tainted romaine lettuce is thought to have originated from the Yuma region, "product labels often do not identify growing regions; so throw out any romaine lettuce if you're uncertain about where it was grown," the agency said in its warning.

So far, illnesses include 24 cases in California, 20 cases in Pennsylvania, 11 in Idaho, eight cases each in Alaska, Arizona, and Montana, seven in New Jersey, six in Washington, four cases each in Georgia and Michigan, three in Ohio, two cases each in Colorado, Connecticut, Massachusetts and New York, and a single case each in Illinois, Kentucky, Louisiana, Mississippi, Missouri, South Dakota, Tennessee, Utah, Virginia and Wisconsin.

Romaine known to be grown in coastal and central California, Florida and central Mexico is not at risk, according to the Produce Marketing Association.

Genetic testing shows that the E.coli strain involved in the outbreak produces a specific type of "Shiga toxin" that causes more severe illness, Wise explained.

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.

In that case, the contamination was traced to a nearby stream half a mile down from a cattle pasture. "The cattle wandered into the stream at liberty, and the strain was found on the pasture land as well," Harris said. "There also were wild pigs running back and forth."

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.

More information

Find out more about E. coli illness at foodsafety.gov.

SOURCES: May 2, 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

Copyright © 2018 HealthDay. All rights reserved. URL:http://consumer.healthday.com/Article.asp?AID=733554

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