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According to the National Veterinary Services Laboratories (NVSL), serovar Newport became one of the top ten 10 most frequently identified Salmonella serotypes from U.S. US cattle from July 1998 through June 1999. Other findings also show that multidrug-resistant serovar Newport has recently been spreading on an epidemic scale in both humans and animals throughout the US. . Ranked as one of the top three Salmonella serotypes causing US foodborne outbreaks, serovar Newport has seen a substantial increase in human clinical cases since 1995, with an estimated 100,000 annual infections. In recent years, multidrug resistant Salmonella Newport has emerged as an epidemic, rapidly spreading through animal and human populations in the US.

Genetic characteristics: 

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⁴ This recall was caused by a multistate outbreak involving Salmonella Typhimurium and Newport as described above. Chamberlain Farms Produce, Inc. of Owensville, Indiana voluntarily issued a recall of cantaloupe grown on its farm. 

Relevant links:

1. https://www.addl.purdue.edu/newsletters/2004/summer/salmnewp.htm#:~:text=newport%20as%20one%20of%20the,annually%20in%20the%20United%20States.
2. https://stacks.cdc.gov/view/cdc/23403/cdc_23403_DS1.pdf
3. https://pubmed.ncbi.nlm.nih.gov/11135779/
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC3008538/
5. https://pubmed.ncbi.nlm.nih.gov/21492021/#:~:text=Salmonella%20serovars%20Newport%20(mainly%20observed,American%20and%20European%20countries)%20were
6. https://pmc.ncbi.nlm.nih.gov/articles/PMC10651324/#:~:text=Outbreak%20Investigations&text=A%20second%20multistate%20outbreak%20that,ground%20beef%20from%20a%20patient.
7. https://dpbh.nv.gov/uploadedFiles/dpbhnvgov/content/Resources/Update%20TB_FDA%20Recall%20on%20Infant%20Formula%20030122.pdf
8. https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-salmonella-newport-red-onions-july-2020
9. https://pmc.ncbi.nlm.nih.gov/articles/PMC11450499/#:~:text=In%20July%202020%2C%20a%20Salmonella,2020%20to%2029%20August%202020
10. https://www.foodsafetynews.com/2020/10/salmonella-in-horse-meat-linked-to-two-deaths-in-france/
11. https://archive.cdc.gov/www_cdc_gov/salmonella/newport-04-19/index.html
12. https://www.fda.gov/animal-veterinary/outbreaks-and-advisories/fda-investigates-contaminated-pig-ear-pet-treats-connected-human-salmonella-infections
13. https://pmc.ncbi.nlm.nih.gov/articles/PMC9164673/#:~:text=In%20autumn%202019%2C%20the%20Public,source%20and%20prevent%20further%20cases
14. https://archive.cdc.gov/#/details?url=https://www.cdc.gov/salmonella/newport-10-18/index.html
15. https://www.kdhe.ks.gov/ArchiveCenter/ViewFile/Item/2781
16. https://archive.cdc.gov/www_cdc_gov/salmonella/coconut-01-18/index.html
17. https://www.cambridge.org/core/journals/epidemiology-and-infection/article/outbreak-of-salmonella-newport-associated-with-internationally-distributed-raw-goats-milk-cheese-france-2018/528E4E70FB25CDBB293627227740E39D
18. https://outbreakdatabase.com/outbreaks/2017-multistate-outbreak-of-salmonella-newport-and-salmonella-infantis-linked-to-maradol-papayas
19. https://www.fsis.usda.gov/sites/default/files/media_file/documents/Newport_AAR_2022072722_cln.pdf
20. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6406a3.htm#:~:text=In%20August%202014%2C%20PulseNet%2C%20the,pattern%20
21. https://archive.cdc.gov/www_cdc_gov/salmonella/typhimurium-cantaloupe-08-12/index.html
22. https://outbreakdatabase.com/outbreaks/2006-outbreak-of-salmonella-newport-at-a-restaurant-linked-to-watermelon-new-york
23. https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5635a3.htm
24. https://www.cidrap.umn.edu/foodborne-disease/uk-salmonella-outbreak-linked-lettuce
25. https://pmc.ncbi.nlm.nih.gov/articles/PMC2870807/#:~:text=Salmonella%20Newport%20causes%20more%20than,510%20patients%20in%2026%20states
26. https://pubmed.ncbi.nlm.nih.gov/12118534/
27. https://pubmed.ncbi.nlm.nih.gov/14689335/
28. https://outbreakdatabase.com/outbreaks/1995-outbreak-of-salmonella-newport-associated-with-alfalfa-sprouts
29. https://webgate.ec.europa.eu/rasff-window/screen/notification/745388
30. https://webgate.ec.europa.eu/rasff-window/screen/notification/737443
31. https://webgate.ec.europa.eu/rasff-window/screen/notification/522132
32. https://webgate.ec.europa.eu/rasff-window/screen/notification/425465
33. https://webgate.ec.europa.eu/rasff-window/screen/notification/423186
34. https://webgate.ec.europa.eu/rasff-window/screen/notification/625006
35. https://webgate.ec.europa.eu/rasff-window/screen/notification/608601
36. https://webgate.ec.europa.eu/rasff-window/screen/notification/555203
37. https://archive.cdc.gov/www_cdc_gov/salmonella/newport-07-20/updates.html
38. https://www.fsis.usda.gov/recalls-alerts/jbs-tolleson-inc--recalls-raw-beef-products-due-possible-salmonella-newport
39. https://outbreakdatabase.com/outbreaks/2012-multistate-outbreak-of-salmonella-newport-linked-to-cantaloupe