S. Bareilly¶

At a Glance


Antigenic Formula	`6,7,14:y:1,5`
Serogroup	O:7 (C1)
NCBI Pathogen Detection	View isolates

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 thetop 20 most common serovarsisolated from clinical salmonellosis cases in the United States.

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 hostsincluding cattle, sheep, chicken, pigs, and wild animals.

Geographical Distribution¶

Serovar Bareilly has been reported worldwide.

Human/Animal 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.