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CDC is collaborating with public health officials in many states and the United States Food and Drug Administration (FDA) to investigate a multistate outbreak of human infections due to Salmonella serotype Typhimurium.
As of 9PM EDT, Sunday, January 18, 2009, 475 persons infected with the outbreak strain of Salmonella Typhimurium have been reported from 43 states and Canada. The number of ill persons identified in each state is as follows: Alabama (1), Arizona (10), Arkansas (4), California (60), Colorado (11), Connecticut (8), Georgia (6), Hawaii (3), Idaho (11), Illinois (5), Indiana (4), Iowa (1), Kansas (2), Kentucky (3), Maine (4), Maryland (8), Massachusetts (40), Michigan (25), Minnesota (35), Missouri (9), Mississippi (1), Nebraska (1), New Hampshire (11), New Jersey (19), New York (19), Nevada (5), North Carolina (4), North Dakota (10), Ohio (64), Oklahoma (2), Oregon (5), Pennsylvania (14), Rhode Island (4), South Dakota (2), Tennessee (9), Texas (6), Utah (4), Vermont (4), Virginia (20), Washington (13), West Virginia (2), Wisconsin (3), and Wyoming (2).
Among the 458 persons with dates available, illnesses began between September 8, 2008 and January 2, 2009, with most illnesses beginning after October 1, 2008. Illnesses that occurred after December 18, 2008 may not yet be reported 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. Please see the Salmonella Outbreak Investigations: Timeline for Reporting Cases for more details Click here . Patients range in age from 1 to 98 years; 47% are female. Among persons with available information, 23% reported being hospitalized. Infection may have contributed to six deaths.
The investigation is ongoing, and exposures to peanut butter and other peanut butter-containing products are being examined.
Preliminary analysis of an epidemiologic study conducted by CDC and public health officials in multiple states on January 3 and 4, 2009, comparing foods eaten by ill and well persons indicates that peanut butter is a likely source of the bacteria causing the infections. To date, no association has been found with major national brand name jars of peanut butter sold in grocery stores.
CDC with state partners is continuing to identify and interview ill persons. To clarify the types of peanut-butter containing foods that are associated with the outbreak, CDC along with state partners conducted a second national case-control study. On January 17-18, 2009, telephone interviews were conducted with 47 persons who became ill with the outbreak strain and 395 well persons. More interviews are still currently being conducted by state and local health departments and CDC. Preliminary analysis of data received as of 9PM, Sunday, January 18, reveals an association with consumption of any pre-packaged peanut butter crackers, specifically Austin and Keebler peanut butter crackers. Austin and Keebler peanut butter crackers are produced by Kellogg Company. On January 14, 2009, Kellogg Company put a precautionary hold on these peanut butter crackers.
An epidemiologic investigation by the Minnesota Department of Health suggested King Nut brand creamy peanut butter as a likely source of Salmonella infections among many ill persons in Minnesota. The Minnesota Department of Agriculture Laboratory isolated the outbreak strain of Salmonella Typhimurium from an open 5-pound container of King Nut brand creamy peanut butter. This product is distributed in many states to establishments such as long-term care facilities, hospitals, schools, universities, restaurants, delis, cafeterias, and bakeries. It is not sold directly to consumers and is not known to be distributed for retail sale in grocery stores.
The Connecticut Department of Public Health Laboratory and the Georgia Department of Agriculture independently isolated Salmonella from unopened 5-pound containers of King Nut brand peanut butter. Further tests are pending to determine if this Salmonella is the outbreak strain.
Clusters of infections in several states have been reported in schools and other institutions, such as long-term care facilities and hospitals. King Nut is the only brand of peanut butter used in those facilities for which we have information.
King Nut is produced by Peanut Corporation of America in Blakely, Georgia. This facility, which is no longer producing any products, has expanded its recall to include all peanut butter and peanut paste produced at this plant since July 1, 2008. This product was not sold directly to consumers but was distributed to institutions, food service providers, and companies in 24 states, Canada, Korea, and Haiti. The peanut butter and peanut paste are ingredients in many products, including cookies, crackers, cereal, candy, ice cream and other foods.
The list of peanut butter and peanut paste containing products that may be affected is still being determined and is incomplete at this time. However, a list of products known to contain the recalled peanut butter and peanut paste can be found on the FDA website. FDA and the product manufacturers are working to determine the list of affected products, which may be extensive. Many companies have already announced whether their products include ingredients being recalled by Peanut Corporation of America, Georgia, and more companies are expected to make similar announcements. The list of recall announcements from companies can be found at FDA website Click here »
Based on available information, CDC and FDA recommendations include:
For directors of institutions and food service establishments
To date, no association has been found with major national brand name jars of peanut butter sold in grocery stores.
Public health officials will advise the public if more products are identified as being associated with the outbreak.
Most persons infected with Salmonella develop diarrhea, fever, and abdominal cramps 12–72 hours after infection. Infection is usually diagnosed by culture of a stool sample. The illness usually lasts 4 to 7 days. Although most people recover without treatment, severe infections may occur. Infants, elderly persons, and those with impaired immune systems are more likely than others to develop severe illness. When severe infection occurs, Salmonella may spread from the intestines tothe bloodstream and then to other body sites and can cause death unless the person is treated promptly with antibiotics.
More general information about Salmonella can be found here.
More information on this investigation can be found below.