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Multistate Outbreak of Human Salmonella Enteritidis Infections Linked to Alfalfa Sprouts and Spicy Sprouts

NOTICE: The information on this page is no longer being updated and may have changed. The information is accurate only as of the last page update.

July 6, 2011 (FINAL Update)

Introduction

CDC is collaborating with public health officials in many states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Salmonella Enteritidis infections linked to alfalfa sprouts and spicy sprouts. There is no connection between this Salmonella outbreak and the European E. coli O104:H4 outbreak. Investigators are using DNA analysis of Salmonella bacteria obtained through diagnostic testing to identify cases of illness that may be part of this outbreak.

As of July 5, 2011, a total of 25 persons with the outbreak strain of Salmonella Enteritidis have been reported from 5 states: Idaho (3), Montana (10), New Jersey (1), North Dakota (1) and Washington (10). Among persons for whom information is available, illnesses began between April 12 and June 15, 2011. Ill persons range in age from 12 years to 77 years old, with a median age of 35 years old.
Seventy-six percent are female. Among the 10 ill persons with available information, 3 (30%) were hospitalized. No deaths have been reported.

The outbreak can be visually described with a chart showing the number of people who became ill each day. This chart is called an epidemic curve or epi curve. Illnesses that occurred after June 15, 2011 might not be reported yet due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks. For more information, please see Salmonella Outbreak Investigations: Timeline for Reporting Cases.

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Investigation of the Outbreak

Collaborative investigative efforts of local, state and federal public health and regulatory agencies have linked this outbreak to Evergreen Fresh Sprouts, LLC Alfalfa Sprouts and Spicy Sprouts. The recalled alfalfa sprouts and spicy sprouts were distributed in Washington and Idaho by direct delivery to four distributors and three retail stores. CDC, FDA and state and local public health partners are continuing surveillance to identify new cases and trace potentially contaminated products. CDC will continue to update the public on the progress of this investigation as information becomes available.

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Clinical Features/Signs and Symptoms

Most persons infected with Salmonella bacteria develop diarrhea, fever and abdominal cramps 12 to 72 hours after infection. The illness usually lasts 4 to 7 days, and most persons recover without treatment. However, in some persons, the diarrhea may be so severe that the patient needs to be hospitalized. Salmonella infection may spread from the intestines to the bloodstream, and then to other body sites and can cause death unless the person is treated promptly with antibiotics. The elderly, infants and those with impaired immune systems are more likely to have a severe illness from Salmonella infection. More general information about Salmonella can be found here.

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Sprouts and Foodborne Illness

Since 1996, there have been at least 30 reported outbreaks of foodborne illness associated with different types of raw and lightly cooked sprouts. Most of these outbreaks were caused by Salmonella and E. coli infections.

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Recall Information

On July 1, 2011, Evergreen Fresh Sprouts, LLC of Moyie Springs, Idaho announced a recall of specific lots of alfalfa sprouts and spicy sprouts because these products have the potential to be contaminated with Salmonella. The products were distributed in Washington and Idaho by direct delivery to four distributors and three retail stores and could have ended up in restaurants and supermarkets in those areas and neighboring states.

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Advice to Consumers and People who Sell or Serve Food

  • Contaminated products may still be in grocery stores and in consumers’ homes. The alfalfa sprouts and spicy sprouts are sold in plastic bags labeled “Evergreen Produce” or “Evergreen Produce Inc.” The recalled alfalfa sprouts and spicy sprouts were distributed in Washington and Idaho by direct delivery to four distributors and three retail stores. The recalled products are coded with expiration dates from 06 22 through 07 14.  More information about the recalled products is available in the Firm Press Release – “Evergreen Fresh Sprouts, LLC Voluntarily Recalls Alfalfa Sprouts and Spicy Sprouts Because Of Possible Health Risk."
  • If you have any recalled Evergreen Fresh Sprouts, LLC Alfalfa Sprouts or Spicy Sprouts, return them or dispose of them in a closed plastic bag placed in a sealed trash can. This will prevent people or animals from eating them.
  • Persons who think they might have become ill from eating potentially contaminated sprouts should consult their health care providers.
  • Children, the elderly, pregnant women, and persons with weakened immune systems should avoid eating raw sprouts of any kind (including alfalfa, clover, radish, and mung bean sprouts).
  • Cook sprouts thoroughly to reduce the risk of illness. Cooking thoroughly kills the harmful bacteria.
  • Request that raw sprouts not be added to your food. If you purchase a sandwich or salad at a restaurant or delicatessen, check to make sure that raw sprouts have not been added.
  • More information about illnesses associated with sprouts can be found on Foodsafety.gov.

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CDC's Role in Food Safety

CDC leads federal efforts to gather data on foodborne illnesses, investigate foodborne outbreaks and monitor the effectiveness of prevention and control efforts. CDC is not a food safety regulatory agency but works closely with the food safety regulatory agencies, in particular, with FDA and U.S. Department of Agriculture’s Food Safety and Inspection Service. CDC also plays a key role in building state and local health department epidemiology, laboratory and environmental health capacity to support foodborne disease surveillance and outbreak response. Notably, CDC data can be used to help document the effectiveness of regulatory interventions.

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Previous Updates

June 26, 2011

NOTICE: The information on this page is no longer being updated and may have changed. The information is accurate only as of the last page update.

 
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