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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)).Geographical distribution:
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 |
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- https://pmc.ncbi.nlm.nih.gov/articles/PMC3416725/
- https://pubmed.ncbi.nlm.nih.gov/19043089/
- https://www.sciencedirect.com/science/article/pii/S0362028X22109610
- https://pubmed.ncbi.nlm.nih.gov/9666586/
- https://webgate.ec.europa.eu/rasff-window/screen/notification/750003
- https://webgate.ec.europa.eu/rasff-window/screen/notification/416258
- https://webgate.ec.europa.eu/rasff-window/screen/notification/717474
- https://webgate.ec.europa.eu/rasff-window/screen/notification/695678
- https://webgate.ec.europa.eu/rasff-window/screen/notification/636997