Outbreak News Today reports in a follow-up on the Yersinia enterocolitica outbreak in Sweden, The Swedish Public Health Agency says the outbreak of Yersinia enterocolitica is over.

During the period January and up to the beginning of February, twice as many people fell ill with Yersinia infection as during the same period in a normal year. Of a total of 53 cases of Yersinia enterocolitica, 33 were resident in the regions of Stockholm, Västra Götaland and Halland.

Isolates from 24 of these cases were typed by whole genome sequencing, and 16 outbreak cases with clustered isolates could be identified.

A contaminated batch of iceberg lettuce distributed to a restaurant chain is the suspected source of infection.