This episode of Food Safety Five discusses research on Listeria biofilms, including sanitizer efficacy and evolutionary insights, and on a persisting Escherichia coli strain in leafy greens. It also covers regulatory developments in the UK, Canada, and the UAE, as well as a potential U.S. ultra-processed foods (UPFs) definition.
FDA recently released a warning letter dated September 5, 2025, issued to Fresh and Ready Foods LLC, a ready-to-eat (RTE) foods producer that was implicated in a multi-state, multi-year listeriosis outbreak.
Clostridium botulinum-contaminatedByHeart-brand formula has sickened at least 23 babies across 13 states. FDA inspection reports and warning letters have come to light showing a history of food safety and hygiene violations at the company’s production facilities.
A new study found high levels of antimicrobial resistance (AMR) among bacteria isolated from unpasteurized (raw) cow and sheep milk in Pakistan, with the potential to spread resistance genes to other bacteria through the food chain.
The outbreak of infant botulism linked to ByHeart infant formula has grown to 23 confirmed cases in 13 states. All infants have been hospitalized, with no deaths reported. The company has issued a recall of all formula products sold nationwide.
ByHeart Inc., the infant formula manufacturer implicated in an ongoing, multistate botulism outbreak, has a history of food safety and hygiene violations at its production facilities, as well as an inadequate root cause analysis in previous incident, per FDA inspection records and warning letters.
Researchers have developed a new, farm-to-fork quantitative microbial risk assessment (QMRA) model to evaluate the risk of Listeria monocytogenes contamination in fresh-cut cantaloupe.
As of November 11, 15 infants have been hospitalized with botulism in 12 states after consuming ByHeart-brand powdered infant formula. The 15 infants who were confirmed to have consumed ByHeart are part of a broader outbreak comprising 84 total cases. A recall has been issued.
A UK-based study, led by Quadram Institute researchers, underscores the limitations of traditional enumeration methods for foodborne pathogen surveillance and highlights the need for whole genome sequencing (WGS) to better assess the food safety risk posed by commensal or opportunistic Escherichia coli lineages.
Salmonella remains one of the most consequential foodborne pathogens, responsible for significant global illness, costly recalls, and reputational damage across the food industry.
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