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USDA OK for Bio-Rad PCR Method for E. coli Detection

NEW YORK (GenomeWeb News) – Bio-Rad Laboratories said today it has received a No Objection Letter from the US Department of Agriculture Food Safety and Inspection Service for its iQ-Check real-time PCR method for detecting Shiga toxin-producing Escherichia coli (STEC) bacteria in beef.

In June, USDA FSIS began testing for six new strains of STEC bacteria declared to be adulterants in beef trim, in addition to the E. coli O157:H7 strain that was already regulated.

Bio-Rad said that it substantiated the claims of the No Objection Letter by generating validation data that demonstrated the equivalency of the Bio-Rad STEC method to the USDA MLG 5B.02 reference method in beef artificially inoculated with low levels of STEC bacteria as well as E. coli O157:H7.

"The Bio-Rad STEC method was designed to be compatible with the USDA method," Brad Crutchfield, president of Bio-Rad's Life Science Group, said in a statement. "We strive to provide fast, reliable, and easy-to-use solutions that enhance our customers' food safety programs and allow them to feel confident in their decisions regarding food safety."

Life Technologies last month also reported it received a No Objection Letter from USDA FSIS for its RapidFinder STEC Detection system.

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