Items Tagged with 'Salmonella'

This episode of Food Safety Five discusses several foodborne pathogens that have been recently highlighted by researchers due to their unusual nature, emergence, and increasing public health significance, including a rare Salmonella strain, an STEC/ETEC hybrid, Group B Streptococcus, and drug-resistant Shigella.

This article reviews why testing for Salmonella is important, the challenges encountered when testing for Salmonella (specifically when using FDA's Bacteriological Analytical Manual Chapter 5 guidelines), and how to evaluate if your testing laboratory is providing reliable testing results. 

The outbreak strain of Salmonella Bochum is extremely rare. Children and adolescents aged 2–15 years represent 75 percent of outbreak patients. Patient interviews and a case-control study point to a certain brand of chocolate-hazelnut spread as the vehicle of illness.

Per CDC and USDA-FSIS data, in 2023, Salmonella Infantis strain REPJFX01 accounted for 97 percent of S. Infantis isolates and 21 percent of all Salmonella recovered from chicken carcasses. This rising trend is closely aligned with an increase in human salmonellosis infections linked to REPJFX01.

Phage W5, isolated from poultry and livestock slaughterhouse effluent, significantly inhibited the growth of Salmonella in milk, pork, and eggs, and effectively prevented and eradicated biofilms on food-contact surfaces. The absence of virulence and antibiotic resistance genes supported its suitability as a food-grade biocontrol agent.

The Canadian Food Inspection Agency (CFIA) recently published the findings from several food sampling and testing assignments for microbiological and chemical contaminants across a range of food categories. In general, the results were satisfactory.

Redacted details include the importer of the implicated mangoes, the country in which the mangoes were grown, and the number and names of states in which outbreak cases were reported.

Although FDA was unable to find a cause of contamination, a single supplier of the contaminated moringa powder was identified. Affected products, which were sold under the Rosabella brand and distributed by Ambrosia Brands LLC, have been recalled.

A key cause of the outbreak was determined to be contaminated eggshells used in poultry feed. Cross-sector collaboration and data-sharing were instrumental in solving the investigation.

The products have been recalled, but have a long shelf life. FDA previously reported working with the manufacturers to determine the root cause of contamination, but has not shared an update at the time of the investigation’s close.