Salmonella Case Investigation and Food Recall – Scaling up through Public Health Partners
Middlesex-London Health Unit
In December of 2021, the Middlesex-London Health Unit (MLHU) identified a cluster of Salmonella cases by serotype and common exposure to a shawarma restaurant chain. Upon investigating, food samples were collected from the suspect chain and some were identified as being positive for Salmonella, triggering further testing of source products and an investigation by PHO on associated cases of Salmonella that may have been linked to the source. The investigation turned up a total of 13 confirmed cases, 2 suspect cases and involved the co-operation of 7 health units alongside PHO. The Laboratory confirmation of contaminated food samples resulted in CFIA issuing a Class II recall to the HRI level without a Food Recall Warning.
The presentation will focus on the efforts of the original case investigations, the follow-up food safety investigations, the rationale for the food sampling, and the impact of MLHU in the resulting multi-province outbreak investigation and national food recall.