Monday, August 15, 2011

There is an outbreak of E. coli O157 related to fresh strawberries in Oregon.  13 people have become ill from eating strawberries that came from a particular farm in NW Oregon.  No source has been identified on how the strawberries came to be contaminated.   This is the first outbreak of STEC E.coli related to strawberries.

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Fresh Strawberries From Washington County Farm Implicated In E. coli O157 Outbreak In NW Oregon

Jonathan Modie
503-758-4914 (Primary)
971-673-1102 (Desk)

FOR IMMEDIATE RELEASE - August 8, 2011 - Oregon Public Health officials have identified fresh strawberries from a Newberg farm as the source of a cluster of Escherichia coli O157:H7 infections that sickened at least 10 people last month, including one person who died.

The strawberries were produced last month by Jaquith Strawberry Farm located at 23135 SW Jaquith Road in Newberg. Jaquith finished its strawberry season in late July, and its strawberries are no longer on the market. Jaquith sold its strawberries to buyers who then resold them at roadside stands and farmer’s markets.

Health officials are urging consumers who may have purchased strawberries grown on this farm to throw them out. Strawberries that have been frozen or made into uncooked jam are of particular concern. Cooking kills E. coli O157:H7 bacteria.

“If you have any strawberries from this producer—frozen, in uncooked jam, or any uncooked form—throw them out,” says Paul Cieslak, M.D., from Oregon Public Health Division. He says people who have eaten the strawberries, but remain well need take no action. The incubation period for E. coli O157:H7 is typically two to seven days.

None of the following have been implicated in this outbreak:

  • Berries other than strawberries.
  • Strawberries sold since Aug. 1.
  • Strawberries sold south of Benton County or east of Multnomah County.
  • Strawberries sold in supermarkets.
  • Strawberries picked at Jaquith Strawberry Farm’s U-pick field.

Ten people have confirmed E. coli O157:H7 infection caused by a single strain. They include residents of Washington, Clatsop, and Multnomah Counties. Six other people in northwest Oregon also have recently developed E. coli O157:H7 infection and appear to be part of this outbreak.

Of the confirmed cases, four have been hospitalized, and one elderly woman in Washington County died from kidney failure associated with E. coli O157:H7 infection. There were twelve females and four males among the cases, and their ages ranged from 4 to 85. They fell ill between July 10 and July 29.

Cieslak, manager of the Oregon Public Health’s communicable disease section, said his team has been working with county public health officials and the Oregon Department of Agriculture on tracking the infection cases. When a potential outbreak is investigated, public health officials ask those who’ve been sickened, family members and health care providers a slate of questions to find common exposures and “trace back” to the source.

“If someone gets sick, we ask questions about everything from what they’ve eaten, to whether they’ve been to common gatherings, to whether they’ve been swimming in a particular place, and then out of this we try to find commonalities,” he said. “The commonality among these cases has been strawberries at roadside stands and farmer’s markets supplied by this one farm last month.”

E. coli is a common inhabitant of the gastrointestinal tract and is usually harmless. But E. coli O157:H7 is a strain of the bacterium carried by some animals, that can contaminate food and water, and that produces toxins that can cause mild to severe intestinal illness, including severe cramps and diarrhea that is often bloody. Some patients develop complications that require hospitalization. About 5 percent of infected persons, especially young children and the elderly, suffer serious and potentially fatal kidney damage.

Antibiotics are not recommended for treatment of E. coli O157:H7 infection, and they may actually make kidney failure more likely. People infected with E. coli O157 should rest and drink plenty of fluids to reduce fatigue and dehydration.

Public health officials emphasize that fruits and vegetables are still important to a healthy diet; at least five servings per day are recommended. However, people need to take the following precautions with any uncooked produce:

  1. Wash fruits and vegetables thoroughly before eating them.
  2. Keep fruits and vegetables and other raw food separated from cooked food
  3. Wash your hands thoroughly with soap after handling raw foods, as well as before eating, after using the toilet, and after changing diapers.

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