Updates on Salmonella Linked to Tempeh and Pet Food and the Importance of Supplier Control

Here are updates for two ongoing outbreak investigations/recalls. Interestingly, both cases indicate the importance of supplier control – in the case of tempeh, it was an ingredient bought from an on-line supplier, and with the pet food, a co-packer has impacted other retail brands.
Salmonella in Tempeh (original post - http://pennstatefoodsafety.blogspot.com/2012/05/outbreak-of-salmonella-paratyphi-b-in.html)

The number of Salmonella cases associated with contaminated tempeh has increased to 63 according to the NC Department of Ag. In testing, it was found that the starter culture used was responsible for the contamination. The company who sold the starter culture was Tempeh Online, which one can guess is a small, web-based company. (If we think about Supplier Control – it can be difficult for one buying an important component on the web from a unknown entity, where there is limited opportunity to investigate the supplier. Starter culture is an ingredient that needs tight process control in that if the process is contaminated, that contaminate, in this case Salmonella, may grow right along with the designated culture, or can contaminate the culture through cross contamination if handling procedures are not good).

Salmonella-tainted culture shipped from Maryland company
 Test confirms tempeh salmonella source
 http://www.citizen-times.com/article/20120511/NEWS/305110037/Tainted-food-salmonella-outbreak-traced-Md-?odyssey=tab%7Ctopnews%7Ctext%7CFrontpage

Salmonella News Update 5/10/12
 http://buncombecounty.org/news_detail.aspx?newsID=12319
 On Thursday, May 10, Buncombe County Department of Health received final test results from the NC Department of Public Health laboratory confirming that the unopened bag of culture that was added to the tempeh tested positive for the matching strain of Salmonella Paratyphi B linked to the current disease outbreak.
The US Food and Drug Administration is already involved in tracing the origin of the ingredient to identify source of contamination as well as the potential for other Salmonella outbreaks in the US.
As of May 10 at 2 PM, Buncombe County Department of Health reports 58 cases associated with salmonella outbreak. Please keep in mind that this number does not include cases being reported in other counties or states.
NC Department of Public Health reports 63 cases, which includes cases in NC and other states; however there is a slight delay in reporting.
To listen to information, call the HOTLINE: 828.250.5300 (English, Spanish and Russian).
 To report symptoms of Salmonella Paratyphi B, call Communicable Disease Nurses: 828.250.5109.

Pet Food and Salmonella (Original Post - http://pennstatefoodsafety.blogspot.com/2012/05/diamond-pet-foods-linked-to-salmonella.html)

As of 5/11/12,CDC reports there are now 16 related illnesses.
http://www.cdc.gov/salmonella/dog-food-05-12/index.html

A total of 15 individuals infected with the outbreak strain of Salmonella Infantis have been reported from 9 states. Additionally, one ill person has been reported from Canada.

• The number of ill persons identified in each state is as follows: Alabama (1), Connecticut (1), Michigan (1), Missouri (3), North Carolina (3), New Jersey (1), Ohio (2), Pennsylvania (2), and Virginia (1). One new ill person was reported from Pennsylvania.
• Among the 10 patients with available information, 5 (50%) were hospitalized. No deaths have been reported
• Multiple brands of dry dog food produced by Diamond Pet Foods at a single manufacturing facility in South Carolina have been linked to some of the human Salmonella infections.

The FDA news releases state that additional companies are recalling product made by Diamond Pet Food. The pet food has been linked to 14 cases of Salmonella. Companies that use Diamond to co-pack product must now react in the event that their product to may be linked to Diamond. Here again, another supplier control issue. Co-packing is an important part of the food supply chain. Many retailer branded products are produced by co-packers and must rely on these companies food safety systems. If there is an issue with co-packer produced product, and it may be a different brand such as in this case, it may result in a major blow to the retailer’s brand as well. 

From the FDA Recall notice.

http://www.fda.gov/Food/FoodSafety/CORENetwork/ucm302904.htm
 http://www.cdc.gov/salmonella/dog-food-05-12/index.html

May 9, 2012
Diamond Pet Foods has expanded its recall of some brands of dry dog and cat food manufactured in its Gaston, South Carolina facility between December 9, 2011 and April 7, 2012 because it has the potential to be contaminated with Salmonella.

The FDA, CDC and state and local officials are collaborating to investigate cases of human illness linked to some brands of dry pet food produced by Diamond Pet Foods at the South Carolina facility.
Consumers should check the company’s website, Diamond Pet Foods Recall Information6 , for information on how to read lot codes and “best by” dates involved in the recall, as well as specific states where the following products were distributed:

· Chicken Soup for the Pet Lover’s Soul
· Country Value
· Diamond
· Diamond Naturals
· Premium Edge
· Professional
· 4Health
· Taste of the Wild
· Apex (distributed only in the state of South Carolina)
· Kirkland Signature (Costco)
· Kirkland Signature Nature’s Domain (Costco)
· Canidae
Several other companies with products manufactured at the Gaston, S.C. facility have issued voluntary recalls, since some of their products were produced at the Gaston facility during the time frame of the recalls and have the potential to be contaminated with Salmonella. Those companies include:
Dick Van Patten's Natural Balance7
Apex Pet Foods8
Canidae9, Wellpet LLC10
Solid Gold Health Products for Pets11

Diamond Pet Foods continues to work directly with distributors and retailers where the recalled products are carried to remove them as quickly as possible from the marketplace. FDA will provide updates on the recall and the investigation as new information becomes available. Complete information on the recalled products, including photos, lot numbers, and distribution information on each is located at Diamond Pet Foods Recall Information.

Outbreak of Salmonella paratyphi B linked to Organic Tempeh

For Update (http://pennstatefoodsafety.blogspot.com/2012/05/updates-on-salmonella-linked-to-tempeh.html)

A North Carolina company, Smiling Hara Tempeh, is recalling unpasteurized Tempeh (fermented bean product) which has tested positive for Salmonella and linked to at least 34 cases of salmonellosis. The company has taken complete responsibility for this outbreak, and is recalling the product.  The product was produced in a shared commerical kitchen of a food incubator.

I think this case shows that no matter the size of the company, or the image they have (see website excerpt below), there is the potential for foodborne illness if all necessary preventive measures are not enacted. Too often, companies that are local, or that claim organic status, or that process foods in a traditional way consider themselves as being inherently safer than larger or conventional companies. Many consumers believe this as well. Salmonella does not read the internet, nor does it care about where those food products are made. If there is an opening, whether it is a processing error, less than hygienic personnel pracitces, or contaminated raw materials, Salmonella will simply take advantage of it.

The strain responsible for this illness was Salmonella paratyphi B which causes an illness similar to Typhoid Fever. It is a very serious infection with symptoms that include a high, sustained fever, headache, diarrhea, abdominal pain, and enlarged liver or spleen. Symptoms can last up to a week or longer, and patients are usually treated with antibiotics. There is also a longer incubation period (time of consumption to the time symptoms are seen) of 7 to 14 days or longer. (Because of this, there may be additional cases.)

Some people eat tempeh raw, but it is normally cooked, often through frying cubes cut from the block.   One would expect the cause to be either cross contamination (raw product contaminating clean surface or other food item) or through undercooking of the product.

Excerpt from Smiling Hara Tempeh website:
http://www.smilingharatempeh.com/
Smiling Hara(meaning “happy belly”) was created in 2009 and spawned from a passion to provide Western North Carolina with an organic, GMO-free, UNpasteurized, local source of Tempeh. We are committed to providing the most nutritious and fresh Tempeh possible, giving our customers the healthiest option and at the same time providing a market for local, organic farmers. We have developed a unique line of Tempehs, including not only the traditional soy Tempeh, but also a variety of legumes such as Black Bean and Black-Eyed Peas! We produce our Tempeh fresh every week right here in Asheville, NC.
Whether you are vegan, vegetarian, pescatarian, or omnivorous, do your body a favor and incorporate local, unpasteurized Tempeh into your regular diet.
 A Intro to Tempeh From Wikipedia

Tempeh (English pronunciation: /ˈtɛmpeɪ/; Javanese: témpé, IPA: [tempe]), is a traditional soy product originally from Indonesia. It is made by a natural culturing and controlled fermentation process that binds soybeans into a cake form, similar to a very firm vegetarian burger patty.

Tempeh begins with whole soybeans, which are softened by soaking and dehulled, then partly cooked. Specialty tempehs may be made from other types of beans, wheat, or may include a mixture of beans and whole grains.

A mild acidulent, usually vinegar, may be added in order to lower the pH and create a selective environment that favors the growth of the tempeh mold over competitors. A fermentation starter containing the spores of fungus Rhizopus oligosporus is mixed in. The beans are spread into a thin layer and are allowed to ferment for 24 to 36 hours at a temperature around 30 °C (86 °F). In good tempeh, the beans are knitted together by a mat of white mycelia.
 Salmonella traced to Asheville tempeh
Tests confirm bacteria in Smiling Hara product as outbreak worsenshttp://www.citizen-times.com/article/20120501/NEWS/305010037/Salmonella-traced-area-tempeh?odyssey=tab%7Ctopnews%7Ctext%7CFrontpage
10:08 PM, Apr. 30, 2012
Joel Burgess Citizen-Times.com

ASHEVILLE — A local maker of fermented bean product confirmed Monday evening that its product tested positive for salmonella. as an outbreak caused by the bacteria worsens.

Smiling Hara Tempeh, which makes a soy, black bean and black-eyed pea version of the product, according to its website, had pulled the food from shelves earlier Monday.

Tests by the N.C. Department of Agriculture confirmed the bacteria was present in a sample collected from a routine inspection by the Food and Drug Protection Division, according to a statement from Smiling Hara Tempeh. Further testing is being done, it added.