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16.06.2025 - Foods

June 16, 2025 - Outbreak of Salmonella Infantis in toddlers: Plant-based product identified as the cause

In recent weeks, the Robert Koch Institute (RKI) has identified a nationwide outbreak of Salmonella Infantis, which particularly affects infants and young children. Currently, more than 50 laboratory-confirmed cases have been registered, many of which have severe courses and require hospitalization. Based on the age structure of those affected, the RKI assumes a high degree of underreporting.

The outbreak investigation was carried out with the help of the "Integrated Genomic Surveillance" (IGS). Through genomic sequencing of the pathogens, a close relationship among all verifications could be established. Epidemiological surveys identified a cashew butter with raspberries as a common source of consumption. The affected product has since been recalled.

This case shows that plant-based foods can also pose a relevant risk for foodborne infections, especially if consumed without heating. From the perspective of microbiological quality assurance, a risk-oriented sampling plan along the entire process chain is therefore sensible, even for plant-based products.

The BAV Institute supports food companies in the prevention and clarification of Salmonella occurrences with targeted microbiological tests according to DIN EN ISO 6579, rapid methods (e.g. PCR), strain comparisons via MALDI-TOF to determine contamination sources, as well as practical hygiene consulting. The service is complemented by online training (e.g. HACCP, § 43 IFSG) and an express service for sample receipt and result provision - all from one source, quickly and reliably.

More information on the current outbreak can be found on the RKI website.