*** This version of Confluence is for testing only and contains a copy of content from June 29th 2026. No changes will be preserved. ***
-
Created by
user-7d4d5, last updated by Brad Yang on May 13, 2025
1 minute read
Background: Salmonella enterica subsp. enterica serovar Oslo (antigenic formula 6,7,14:a:e,n,x) is a serovar of the serogroup O:7 (C1). Strains in this group can be lysogenized by phage 14 (O:6,7 ––> O:6,7,14, former group C4). The Oslo serotype is rare with about 25 cases reported each year in the US.
Animal reservoir: Serovar Oslo was found in squid.
Geographical distribution: Serovar Oslo has been found in India, and US.
Human outbreaks:
Year | Location | Associated source | Number of cases |
2016 | US: multistate | Cucumbers | 14 |
2023 | US: LA | Crawfish | 28 |
Border rejections:
Year | Exporting country | Importing country | Associated source | Product category |
|---|---|---|---|---|
| 2020 | Thailand | Germany | Frozen chicken breast1 | Poultry meat and poultry meat products |
1 Consignment was released later.
Recalls:
| Year | Location | Recalled food | Type |
|---|---|---|---|
| 2022 | Germany, Luxembourg, Northern Ireland | Organic tahini from Germany, made with raw material from Uganda1 | Nuts, nut products and seeds |
1 Salmonella Oslo and Korovi were found.
Relevant links:
- https://webgate.ec.europa.eu/rasff-window/screen/notification/434548
- https://webgate.ec.europa.eu/rasff-window/screen/notification/580385
- https://www.cdc.gov/mmwr/volumes/65/wr/mm655051a3.htm
- http://www.serotest-thailand.com/upload/news/download/9-8310-0.pdf
- https://event.fourwaves.com/inform/abstracts/d3671885-2a45-4774-8db4-7e8e800cfc41
- https://www.sciencedirect.com/science/article/pii/0002934376904290?via%3Dihub
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6930137/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2643569/