Raw flour can be source of shiga toxin-producing E. coli

November 23, 2017

(HealthDay)—Raw flour can be a source of outbreak of Shiga toxin-producing Escherichia coli (STEC) infections, according to a study published in the Nov. 23 issue of the New England Journal of Medicine.

Samuel J. Crowe, Ph.D., M.P.H., from the U.S. Centers for Disease Control and Prevention in Atlanta, and colleagues examined an of STEC serogroup O121 and O26 infections linked to contaminated . Outbreak cases, defined as infection with an outbreak strain in which illness onset was between Dec. 21, 2015, and Sept. 5, 2016, were compared with non-STEC enteric illness cases, matched for age group, sex, and state of residence.

The researchers identified 56 cases in 24 states. In univariable models, was significantly associated with use of one brand of flour and with tasting unbaked homemade dough or batter (odds ratios, 21.04 and 36.02, respectively). The outbreak strains were isolated from flour samples and whole-genome sequencing showed that the isolates from clinical and food samples were closely related genetically. A common flour-production facility was identified on trace-back investigation.

"This investigation implicated raw flour as the source of an outbreak of STEC infections," the authors write. "Although it is a low-moisture food, raw flour can be a vehicle for foodborne pathogens."

Explore further: General Mills recalls flour over possible E. coli link

More information: Abstract/Full Text (subscription or payment may be required)

Related Stories

General Mills recalls flour over possible E. coli link

May 31, 2016
General Mills is recalling about 10 million pounds of its flour over a possible link to an E. coli outbreak in 20 states.

General Mills expands flour recall after outbreak of E. coli

July 1, 2016
General Mills is expanding its recall of certain types of flour in response to an ongoing outbreak of illnesses related to a strain of E. coli bacteria.

General Mills expands flour recall after 4 more illnesses

July 26, 2016
General Mills is expanding a flour recall issued over a possible link to an E. coli outbreak after four new illnesses were reported.

Ready-to-bake cookie dough not ready-to-eat, study of E. coli outbreak finds

December 9, 2011
The investigation of a 2009 multistate outbreak of Shiga toxin-producing Escherichia coli (STEC), an important cause of bacterial gastrointestinal illness, led to a new culprit: ready-to-bake commercial prepackaged cookie ...

FDA warns against eating raw dough amid E. coli fears

June 30, 2016
In a warning that's sure to disappoint many who enjoy sneaking a taste of cookie dough, federal regulators said this week that people should not eat raw dough or batter of any kind due to an ongoing outbreak of illnesses ...

US declares E. coli outbreak over at Chipotle restaurants

February 1, 2016
US health authorities Monday declared an end to two separate outbreaks of E. coli that sickened dozens of customers at Mexican restaurant chain Chipotle in the United States.

Recommended for you

Marker may help target treatments for Crohn's patients

October 16, 2018
Crohn's disease (CD), a chronic inflammatory condition of the intestinal tract, has emerged as a global disease, with rates steadily increasing over the last 50 years. Experts have long suspected that CD likely represents ...

Study traces hospital-acquired bloodstream infections to patients' own bodies

October 15, 2018
The most common source of a bloodstream infection acquired during a hospital stay is not a nurse's or doctor's dirty hands, or another patient's sneeze or visitor's cough, but the patient's own gut, Stanford University School ...

Polio: Environmental monitoring will be key as world reaches global eradication

October 15, 2018
Robust environmental monitoring should be used as the world approaches global eradication of polio, say University of Michigan researchers who recently studied the epidemiology of the 2013 silent polio outbreak in Rahat, ...

Researchers make essential imaging tests safer for people at risk of acute kidney injury

October 15, 2018
Every year, millions of people undergo medical tests and procedures, such as coronary angiography, which use intravascular contrast dyes. "For the majority of patients, these are safe and necessary procedures. However, about ...

Medical marijuana might help MS patients, but uncertainty remains

October 13, 2018
Medical products derived from marijuana might have a mild benefit in treating symptoms of multiple sclerosis, based on reports from patients.

Do not give decongestants to young children for common cold symptoms, say experts

October 11, 2018
Decongestants should not be given to children under 6—and given with caution in children under 12—as there is no evidence that they alleviate symptoms such as a blocked or runny nose, and their safety is unclear, say ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.