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Researchers at the University of California, Santa Barbara, have identified certain serotypes of Salmonella—among the more than 2,500 strains known to exist—that have the capacity to become “hypervirulent” during the infective process in animals.
By attaching pathogen-specific antibodies to vanishingly small gold nanoparticles—so minuscule that 25,000 would fit across the width of a human hair—scientists at Jackson State University in Mississippi can detect various strains of Salmonella with a simple five-minute test.
Features: The zNose Knows Ripeness
An electronic nose may hold the secrets to melon ripeness and could provide the answer much more quickly than the previous scientific method—gas chromatography—which takes up to an hour to analyze a single sample.
Livestock experts, consumer groups and the food industry are awaiting a response from the FDA on the use of certain antibiotics, including tetracyclines and penicillin, in animal feed, in the wake of a ruling that the FDA must withdraw approval for the use of these antimicrobials unless the manufacturers can prove their safety for this purpose.
Foodborne pathogens attach to fruits in different ways depending on their ripeness, according to researchers from Imperial College London, who presented their work at the Society for General Microbiology’s Spring Conference in Dublin, Ireland, in late March.
Features: Outbreaks Spur Rapid STEC Tests
First implicated in a 1993 U.S. outbreak caused by undercooked ground beef, the Shiga toxin-producing E. coli (STEC) known as O157:H7 has become a familiar term associated with foodborne illness.
Features: Embattled BPI Hits Back on “Pink Slime”
Beef Products Inc, primary manufacturer of the ammoniated beef product widely known as “pink slime,” has mounted a concerted effort to clean up the reputation of the company and its product.
A slowdown in the establishment of federal centers of excellence in food safety mandated by the FSMA “could have an adverse effect on the progress that the U.S. has been making in foodborne disease surveillance,” warned a leading national food safety expert.
Infectious prions, the lethal microbes that cause Creutzfeldt-Jakob disease in humans and bovine spongiform encephalopathy (mad cow disease) in animals, can be eradicated with a technique that has long been used to inactivate pathogens in drinking water.
Proposed regulations for the livestock and poultry industries—most prominently those involving animal housing, environmental regulations, the use of antimicrobials and other drugs, livestock trading, and labor regulations—could increase production costs by 10% to 25%, potentially costing consumers as much as $16 billion annually, claims a new report commissioned by the United Soybean Board.