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Background: Salmonella enterica subsp. enterica serovar Oranienburg (antigenic formula 6,7,14:m,t:[z57z₅₇]) is a serovar of the O:7 (C₁) serogroup.

S. Oranienburg ranks 13^th among human salmonellosis cases in the U.S. This serovar has been isolated from multiple sources (domesticated animals, wild animals, and soil). In Argentina, an strain encoding extended-spectrum β-lactamases was reported in a pediatric hospital.

In these regions, it ranks among the most common 15^th Salmonella serovarsSerovar Oranienburg was first isolated from a child with gastroenteritis, a resident of a Children's Home in Oranienburg near Berlin, Germany in 1930. Serovar Oranienburg ranked as the 10th and 15th most Salmonella prevalent serovar in North and Latin America, respectively. In 2003, serovar Oranienburg was the nineth most common Salmonella serovar causing human salmonellosis. Serovar Oranienburg was reported to cause haemorrhagic cystitis in an immunocompetent young male in Australia. In Japan, this serovar was documented to be bacteremia-related. 

NCBI PD link for serovar Oranienburg: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#(taxgroup_name:%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Oranienburg%22)

Genetic characteristics:  In Argentina, an strain encoding extended-spectrum β-lactamases was reported in a pediatric hospital.

Animal reservoir: Chicken may be a potential reservoir for serovar Oranienburg. This serovar was also isolated from other animals including bovine, equine, porcine, canine, and wild animals.

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² While the total case number was not reported, 439 confirmed cases were documented in Germany.

Animal outbreaks:

¹ The herd size was 604 (Salmonella Oranienburg prevalence: 27.8%). 

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⁴ This recall was caused by an international outbreak described above. 

Relevant links:

1. https://journals.asm.org/doi/pdf/10.1128/jb.32.3.259-263.1936
2. https://web.archive.org/web/20050520232026/http://www.cdc.gov/ncidod/dbmd/phlisdata/salmtab/2003/SalmonellaTable1_2003.pdf
3. https://pmc.ncbi.nlm.nih.gov/articles/PMC5610707/
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC9846185/
5. https://militaryhealth.bmj.com/content/112/4/211
6. https://www.eggindustrycenter.org/soranienburg#:~:text=Specific%20animal%20species%20that%20can,salad%20and%20most%20recently%20eggs.
7. https://pubmed.ncbi.nlm.nih.gov/21492021/
8. https://marlerclark.com/salmonella-cantaloupe-outbreak-hits-43-in-15-states
9. https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-salmonella-oranienburg-whole-fresh-onions-october-2021
10. https://archive.cdc.gov/www_cdc_gov/salmonella/oranienburg-10-16/index.html
11. https://www.cdc.gov/mmWR/preview/mmwrhtml/mm5639a3.htm
12. https://www1.health.gov.au/internet/main/publishing.nsf/Content/cda-cdi3002f.htm
13. https://www.researchgate.net/publication/6934802_Outbreak_of_Salmonella_oranienburg_infection_in_Japan
14. https://web.archive.org/web/20090710153211/https://www.fda.gov/Food/ScienceResearch/ResearchAreas/SafePracticesforFoodProcesses/ucm091270.htm
15. https://www1.health.gov.au/internet/main/publishing.nsf/Content/cda-pubs-cdi-1998-cdi2208-cdi2208d.htm
16. https://www.cdc.gov/mmwr/preview/mmwrhtml/00001205.htm
17. https://www.liebertpub.com/doi/10.1089/fpd.2010.0551?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed
18. https://webgate.ec.europa.eu/rasff-window/screen/notification/524928
19. https://webgate.ec.europa.eu/rasff-window/screen/notification/524019
20. https://webgate.ec.europa.eu/rasff-window/screen/notification/418605
21. https://webgate.ec.europa.eu/rasff-window/screen/notification/416416
22. https://www.foodsafetynews.com/2024/07/lab-error-behind-false-salmonella-finding-in-finland/
23. https://www.marlerblog.com/case-news/more-cantaloupe-recalled-due-to-salmonella-oranienburg-and-sundsvall-outbreak/
24. https://www.fda.gov/safety/major-product-recalls/2021-recalls-food-products-associated-onions-prosource-produce-llc-and-keeler-family-farms-due
25. https://pmc.ncbi.nlm.nih.gov/articles/PMC552305/

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