Health authorities in the U.K. and the E.U. have been investigating an extensive outbreak of Salmonella Mbandaka ST 413. Since early November 2022, 196 cases were reported in six E.U. nations, the U.K. and in Israel.  Approximately ten percent of diagnosed cases have required hospitalization.

Based on investigations using appropriate questionnaires and laboratory studies, the vehicle of infection is presumed to be ready-to-eat products containing chicken meat included in sandwiches and wraps.  Epidemiologic data suggests a number of sources through various distribution chains.