*** This version of Confluence is for testing only and contains a copy of content from June 29th 2026. No changes will be preserved. ***
-
Created by
Tamara Walsky, last updated by Brad Yang on Apr 20, 2025
1 minute read
Background: Salmonella enterica subsp. enterica serovar Lomalinda (antigenic formula 1,9,12:a:e,n,x) is a serovar of the O:9 (D1) serogroup. This serovar was first isolated from the
spinal fluid of a baby that died of meningitis in 1944 in Loma Linda, California, US.
NCBI PD Serovar Link for serovar Lomalinda: https://www.ncbi.nlm.nih.gov/pathogens/isolates/#(taxgroup_name:%22Salmonella%20enterica%22)%20AND%20computed_types:(%22serotype=Lomalinda%22)
Genetic characteristics: Stanley et al. reported the presence of virulence plasmids carrying spvBC in serovar Lomalinda.
Animal reservoir: Unknown, but according to the metadata from NCBI PD, serovar Lomalinda was previously isolated from rodents and great horned owl (Bubo virginianus).
Geographical distribution: According to the metadata from NCBI PD, serovar Lomalinda has only been reported in US, Canada and UK.
Human outbreaks:
Year | Location | Associated source | Number of cases |
|---|---|---|---|
2021 | US: multistate | Not identified | 10 |
2013 | US: CA | Not identified | At least 7 |
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://doi.org/10.3181/00379727-57-14714
- https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-41-2-112
- https://outbreakdatabase.com/outbreaks/2021-multistate-outbreak-of-salmonella-lomalinda-infections-source-unknown
- https://www.foodsafetynews.com/2013/11/7-sick-in-california-salmonella-outbreak/