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Genetic Testing

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FDA closes SM Fish; Listeria at facility matches sick people

Federal officials have effectively closed down a New York company after repeatedly finding Listeria in its food production plant, reporting that one of the seven strains of the pathogen in the facility genetically matches infections in at least four people. The Food and Drug Administration has suspended the food facility registration of SM Fish Corp…. Continue Reading

FDA Approves GE Salmon, Voluntary Labeling of GE Ingredients

The U.S. Food and Drug Administration (FDA) announced Thursday, Nov. 19, 2015, that it has approved for the first time a genetically engineered (GE) animal intended for food. That animal is the AquAdvantage Salmon, which was developed about 25 years ago by AquaBounty Technologies Inc. of Maynard, MA, to grow larger and faster, year-round, and on less… Continue Reading

KSU Researchers Develop Genetic Test to Help Detect E. coli in Beef Cattle

Researchers at Kansas State University in Manhattan, KS, have developed a genetic test that could help the cattle industry more rapidly and accurately detect pathogenic Shiga toxin-producing E. coli O157:H7. Leading the project is Lance Noll, veterinary biomedical science graduate student; T.G. Nagaraja, university distinguished professor of diagnostic medicine and pathobiology, and Jianfa Bai, assistant… Continue Reading

Genetic Testing

Pulsed-Field Gel Electrophoresis (PFGE) PFGE was developed in 1984 and has since become the gold standard for bacterial subtyping.  PFGE is the primary subtyping method used by PulseNet, a network of public health laboratories that perform PFGE on foodborne disease organisms such as Salmonella, E. coli O157:H7, Shigella (11), Listeria monocytogenes (7), and Campylobacter jejuni… Continue Reading