Salmonella Carrau

Background: Salmonella enterica subsp. enterica serovar Carrau (antigenic formula 6,14,[24]:y:1,7) is a serovar of the O:6,14 (H) serogroup. This serovar was first isolated from the glands of pigs, in 1936 in Uruguay. Serovar Carrau was considered a rare serotype and was found to cause septicemia in turtles. 

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

Genetic characteristics: Serovar Carrau has been found to be paraphyletic. A non-Carrau serovar, S. Madelia clusters within serovar Carrau. Karczmarczyk et al. reported uncommon high-level quinolone resistance with absence of any DNA gyrase mutations in serovar Carrau. 

Animal reservoir: Serovar Carrau was found in horses, dogs, and wild animals such as snake, lizards, and turtles. 

Geographical distribution: Serovar Carrau has been reported in North America, South America, and Europe such as Finland, and the UK.

Human outbreaks: 

Border rejections: No recent border rejections linked to this serovar have been reported.  

Recalls: 

¹ This recall was resulted by a multistate outbreak described above. Caito Foods LLC recalled pre-cut watermelon, cantaloupe, honeydew melon, and pre-cut fruit medley products. 

Relevant links

1. https://journals.asm.org/doi/10.1128/jb.47.4.323-326.1944?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed
2. https://pubmed.ncbi.nlm.nih.gov/20883500/
3. https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1547190/full
4. https://pubmed.ncbi.nlm.nih.gov/19968856/#:~:text=Species%20of%20tegu%20(Tupinambis)%20are,different%20patterns%20of%20antibiotic%20susceptibility.
5. https://www.researchgate.net/publication/288172765_Salmonella_carrau_septicemia_in_a_South_American_river_turtle_Podocnemis_expansa
6. https://www.cdc.gov/salmonella/carrau-04-19/index.html