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Created by
Renato Hohl Orsi, last updated by Brad Yang on Jul 18, 2025
2 minute read
Background information: Salmonella enterica subsp. enterica serovar Bareilly (antigenic formula 6,7,14:y:1,5) is a serovar of the O:7 (C1) serogroup. This serovar was first isolated from a paratyphoid case in India in 1928. Serovar Bareilly has consistently ranked among the top 20 most common serovars isolated from clinical salmonellosis cases in the United States.
NCBI PD link for serovar Bareilly: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#taxgroup_name:(%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Bareilly%22)
Genetic characteristics: Serovar Bareilly has been found to be polyphyletic with four lineages identified and one stand-alone singleton that doesn't cluster with any other Salmonella Bareilly isolates. Park et al. analyzed a total of 31 Bareilly isolates from various food-borne outbreaks in South Korea between 2014 and 2018 and revealed two major groups (A and B) each with two subgroups (A1, A2/B1, B2). Their comparative biofilm formation assay found that A group strain GG-07 has lower biofilm formation activity than B group strain GG-21. All 31 isolates have high susceptibility to 17 tested antibiotics.
Animal reservoir: Serovar Bareilly has been found in a wide range of hosts including cattle, sheep, chicken, pigs, and wild animals.
Geographical distribution: Serovar Bareilly has been reported worldwide.
Human outbreaks:
| Year | Location | Associated source | Number of cases |
|---|---|---|---|
| 2017-2018 | Czech Republic & Slovakia | powdered eggs | 325 |
| 2012 | US: multistate | Imported frozen raw yellowfin tuna | 410 |
| 2010 | United Kingdom | Bean sprouts | 190 |
Border rejections:
Year | Exporting country | Importing country | Associated source | Product category |
| 2022 | India | Germany | Sesame seeds | Nuts, nut products and seeds |
| 2021 | India | Finland | Frozen green beans | Fruits and vegetables |
Recalls:
| Year | Location | Recalled food | Type |
|---|---|---|---|
| 2022 | Finland | Curry powder from India | Herbs and spices |
| 2021 | Slovenia | Turmeric from Bosnia and Herzegovina1 | Herbs and spices |
| 2020 | Poland | Nigella seeds from India2 | Herbs and spices |
1 Salmonella Bareilly and Bacillus cereus (enterotoxin) were both found.
2 Measures including heat treatment and reinforced checking were taken.
Relevant links:
- https://www.cabidigitallibrary.org/doi/full/10.5555/19312701578
- https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1547190/full
- http://www.cdc.gov/ncezid/dfwed/PDFs/salmonella-annual-report-2011-508c.pdf
- https://pmc.ncbi.nlm.nih.gov/articles/PMC9643863/
- https://www.foodsafetynews.com/2021/04/spray-dryer-blamed-in-salmonella-outbreak-with-325-sick/
- https://archive.cdc.gov/#/details?url=https://www.cdc.gov/salmonella/bareilly-04-12/index.html
- https://www.foodsafetynews.com/2010/09/sprouts-named-as-cause-for-s-bareilly-outbreak-in-uk/
- https://webgate.ec.europa.eu/rasff-window/screen/notification/540411
- https://webgate.ec.europa.eu/rasff-window/screen/notification/479056
- https://webgate.ec.europa.eu/rasff-window/screen/notification/558108
- https://webgate.ec.europa.eu/rasff-window/screen/notification/513596
- https://webgate.ec.europa.eu/rasff-window/screen/notification/436367