*** This version of Confluence is for testing only and contains a copy of content from June 29th 2026. No changes will be preserved. ***
Background:
Genetic Characteristics:
Animal Reservoir:
Geographical Distribution:
Salmonella enterica subsp. enterica (antigenic formula 35:z4,z23:–) is a serovar of the O:35 (O) serogroup. This serovar was first isolated from swine in Florida, US, in 1952.
NCBI PD link for serovar Alachua: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#(taxgroup_name:%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Alachua%22)
Genetic characteristics: Serovar Alachua has been found to be polyphyletic with two lineages identified. The five outbreak strains exhibited nalidixic acid minimum inhibitory concentration values exceeding the threshold (≥256 μg/mL) and demonstrated reduced susceptibility to ciprofloxacin (minimum inhibitory concentration = 0.5 μg/mL).
Animal reservoir: Serovar Alachua was mainly found in chicken but was also present in pigs, and turkey.
Geographical distribution: Although serovar Alachua has been reported worldwide, it is more frequently found in the countries such as the US, and UK.
Human outbreaksOutbreaks:
| Year | Location | Associated |
|---|
| source | Number of |
|---|
Border Rejections:
...
Year
...
Exporting Country
...
Country Issuing Border Rejection
...
Associated Source
Border rejections: There have been no recent border rejections linked to this serovar.
Recalls: There have been no recent recalls linked to this serovar.
Relevant links:
- https://journals.asm.org/doi/pdf/10.1128/jb.66.1.118-118.1953
- https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1547190/full
- https://www.sciencedirect.com/science/article/pii/S1413867015000288?via%3Dihub
- https://www.sciencedirect.com/science/article/pii/S003257911936835X
Recalls:
...