Items Tagged with 'listeria'

FDA, CDC, and USDA-FSIS researchers analyzed foodborne illness surveillance data against targets set under the Healthy People initiative, finding worsening incidence of campylobacteriosis, listeriosis, and STEC infections, with no detectable change in salmonellosis incidence, while acknowledging the potential role of advanced surveillance methods.

Treatment effectiveness varied by L. monocytogenes strain and bacteriocin used. While the findings supported continued development of enzyme-bacteriocin combinations as potential bio-based tools for L. monocytogenes biofilm control, researchers highlighted the need to ensure that biofilm disruption is accompanied by effective bacterial inactivation.

Supported by the Center for Produce Safety (CPS), Cornell researchers are developing a quantitative microbial risk assessment (QMRA) model to evaluate how quality defects affect Listeria and E. coli growth on produce, helping identify effective interventions and improve processes.

This episode covers the final findings from the U.S. Cyclospora outbreak, new USDA efforts to address Listeria, the new FDA Food Code, research on high-pressure processing for raw chicken, and emerging food safety concerns associated with plastic pollution. 

The program, which was explored after the Boar’s Head outbreak of 2024 spurred the agency to reevaluate its inspection and Listeria monitoring protocols, was piloted in FY 2026 and will be expanded to FSIS districts nationwide.

This article explores how rapid detection technologies are transforming environmental monitoring programs for L. monocytogenes in dairy plants. It also discusses how faster detection supports quicker sanitation verification, improved risk-based monitoring, and more effective decision-making during contamination events.

In an analysis of a Listeria monocytogenes outbreak in which one person died, UKHSA highlighted investigation details, risk assessment and control measures, and the potential risks associated with home-delivered cook-chill meals.

Participants argued that reductions in listeriosis will require implementation of fundamental preventive controls, true “seek and destroy” efforts, and risk-based approaches. Dose-response models suggesting that low contamination may confer low risk were also discussed.

Longer application times, shorter nozzle distances, and spray patterns that deliver sufficient physical force to surfaces may contribute to improved microbial reduction. Sanitizer efficacy experiments could misrepresent real-world sanitation outcomes when shear stress and application time are not considered.

This episode of Food Safety Five discusses new research on avocado oil authenticity in processed foods, the effects of nanoplastics on bacterial biofilms in drinking water systems, factors influencing Listeria monocytogenes persistence on plastic food contact surfaces, and stress-adaptation traits that may help E. coli persist from farm to fork.