Salmonella Ohio

Background information: Salmonella enterica subsp. enterica serovar Ohio (antigenic formula 6,7,14:b:1,w) is a serovar of the O:7 (C₁) serogroup. This serovar has been previously reported to cause septic arthritis and bone abscess in an immunocompetent patient.

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

Genetic characteristics:

Animal reservoir: Chicken and pigs may be potential reservoirs for serovar Ohio. This serovar was also isolated from other animals such as horses and wild ducks (Anas platyrhynchos).

Geographical distribution: Serovar Ohio has been reported worldwide, but primarily in the UK and US (Out of 1,386 serovar Ohio isolates, 998 (72.0%) were from US, according to NCBI PD (accessed May 12, 2025)).

Human outbreaks:

Year	Location	Associated source	Number of cases
2005	Belgium	Pork	60
2004	Belgium	Unknown	29
1998	Spain	Waterborne	59

Border rejections:

Year	Exporting country	Importing country	Associated source	Product category
2025	Thailand	Germany	Dog chews¹	Feed materials
2020	Denmark	Belgium	Fish meal	Feed materials

¹ Consignment was released.

Recalls:

Year	Location	Recalled food	Type
2024	Finland, Denmark	Frozen pork cheek from Poland via Estonia¹	Meat and meat products (other than poultry)
2024	Italy	Frozen shelled clams from Turkey	Fish and fish products
2023	Czech Republic	Frozen dumplings with chicken filing from Lithuania²	Other food product / mixed

¹ Salmonella Ohio, Typhimurium and Derby were found.

² Salmonella Ohio and Infantis were found.

Relevant links:

Page tree

Salmonella Ohio