Since November 1, 26 people in Sweden have been confirmed to be infected with Salmonella Agona. Whole-genome sequencing (analysis of the bacteria’s genetic material) has shown that the disease cases carry the same strain of Salmonella Agona and are thus suspected of having been infected by a common source.
The cases, who are aged 3-86 years (median=32 years), are from twelve different regions in Sweden and 15 of the infected are women. The outbreak strain of Salmonella Agona has also been identified in a number of cases of illness in Norway.
Work to identify the source of infection, which is suspected to be a food with wide distribution in both Sweden and Norway, takes place in collaboration between infection control units, the Swedish Food Agency and the Norwegian Public Health Agency, as well as with Norwegian authorities.