Salmonella Litchfield

Background: Salmonella enterica subsp. enterica serovar Litchfield (antigenic formula 6,8:l,v:1,2) is a serovar of the O:8 (C₂-C₃) serogroup.

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

Genetic characteristics:

Animal reservoir: Poultry and turtles may be potential hosts.

Geographical distribution: Based on the metadata from NCBI PD, serovar Litchfield has been reported worldwide but mainly in US.

Human outbreaks:

Year	Location	Associated Source	Number of Cases
2022	US: multistate	Raw salmon	39
2019	Canada	Italian Style mild, dry, cured sausage	13
2009	Spain	Pet turtles¹	6
2008	Canada & US: multistate	Cantaloupe	At least 50
2006-2007	Australia	Papaya	26

¹ Both Salmonella Paratyphi B and Litchfield were involved. The case number does not reflect the number of infections linked to Salmonella Litchfield only.

Border rejections: There have been no recent border rejections linked to this serovar.

Recalls:

Year	Location	Recalled food	Type
2022	US: multistate	Raw salmon¹	Fish and fish products
2019	Canada	Italian Style mild, dry, cured sausage²	Meat and meat products (other than poultry)

¹ Mariscos Bahia, Inc., based in Pico Rivera, CA, has voluntarily issued a recall. The affected products consist of fresh, raw salmon, as well as all other fresh fish processed in the same facility, including fresh, raw halibut, Chilean seabass, tuna, and swordfish.

² Canadian Food Inspection Agency issued a recall for Filicetti brand Italian Style mild, dry, cured sausage.

Relevant links:

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Salmonella Litchfield