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Applied Markets Watch: DuPont Listeria Assay

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DuPont said this week that its BAX System real-time PCR assay for Listeria species has been certified by the AOAC Research Institute as a Performance Tested Method.

The assay has been validated on frankfurters, cooked shrimp, spinach, queso fresco, and environmental surfaces using reference method media as well as proprietary media for a shorter, single-stage enrichment, DuPont said.

The AOAC Research Institute, a subsidiary of AOAC International in Rockville, Md., validated the BAX System method as equivalent to the reference culture method for detecting Listeria species, but with much faster time to results, the company added.

BAX System assays for Escherichia coli O157:H7, non-O157 STEC, Campylobacter, and other pathogens are already PTM-certified. In addition, AOAC International has awarded Official Method of Analysis status to the system for detecting Salmonella and L. monocytogenes, and DuPont noted that these assays can be run in conjunction with the Listeria species test.

The Scan

More Boosters for US

Following US Food and Drug Administration authorization, the Centers for Disease Control and Prevention has endorsed booster doses of the Moderna and Johnson & Johnson SARS-CoV-2 vaccines, the Washington Post writes.

From a Pig

A genetically modified pig kidney was transplanted into a human without triggering an immune response, Reuters reports.

For Privacy's Sake

Wired reports that more US states are passing genetic privacy laws.

Science Paper on How Poaching Drove Evolution in African Elephants

In Science this week: poaching has led to the rapid evolution of tuskless African elephants.