Background: Salmonella enterica subsp. enterica serovar Oranienburg (antigenic formula 6,7,14:m,t:[z57]) 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 serovars. 

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: 

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.

Geographical distribution: While Serovar Oranienburg has been reported globally, it occurs most frequently in North and Latin America.

Human outbreaks: Multiple human outbreaks linked to serovar Oranienburg have been reported. They were associated with a variety of food. Below are examples. 

¹ There were 407, 190 cases reported in US and Canada, respectively. Salmonella Soahanina, Sundsvall, Oranienburg, and Newport were involved.

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%). 

Border rejections: Multiple border rejections linked to serovar Oranienburg have been reported. The majority of them were linked to black pepper imported from Brazil to Germany. Below are examples.

¹ Salmonella Oranienburg and Javiana were found.

² Salmonella Morehead and Oranienburg were found.

Recalls: Multiple recalls linked to serovar Oranienburg have been reported. Below are some examples. 

¹ Root cause analysis identified possible cross-contamination from a positive Salmonella sample as the source of error.

² This recall was caused by a national outbreak described above. Whole melons from Crown Jewels Produce were recalled. 

³ This recall was caused by a multistate outbreak described above. ProSource Produce, LLC and Keeler Family Farms of Deming issued recalls. 

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

Relevant links:

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

1. http://link.springer.com/article/10.1186%2F1471-2334-5-7
2. http://www.ncbi.nlm.nih.gov/pubmed/16850895
3. http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5639a3.htm
4. http://www.ncbi.nlm.nih.gov/pubmed/23425126
5. http://www.ncbi.nlm.nih.gov/pubmed/20464138
6. http://www.ncbi.nlm.nih.gov/pubmed/20939741
7. http://www.fda.gov/Food/RecallsOutbreaksEmergencies/Outbreaks/ucm523017.htm
8. https://doi.org/10.1111/zph.13174