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Background: Salmonella enterica subsp. enterica serovar Tennessee (antigenic formula 6,7,14:z29:[1,2,7]) is a serovar of the O:7 (C₁) serogroup. From 1995 to 2004, an average of 52 Salmonella Tennessee cases were reported to the National Salmonella Surveillance System every year. Nuts and seeds such as sesame-based products, pistachio halva are the common vehicles for serovar Tennessee. Infections from this serotype are uncommon, representing approximately 0.1% of US Salmonellosis cases between 1994 and 2004 and averaging just 52 per year. At the beginning of 1994 and in the following months, Denmark observed a substantial increase in serovar Tennessee cases among broiler flocks. Unlike typical Salmonella infections limited to the gut, certain serotypes, including serovar Tennessee, show a greater tendency to invade the urinary tract. Notably, urine isolates of serovar Tennessee surged from 15% (1995–2004) to 27% during 2005–2006 in US. When desiccated on sterile quartz, serovar Tennessee was found to accumulate substantial quantities of trehalose.

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

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Year	Location	Associated source	Type
2023	Romania	Fish flour from Latvia	Feed materials
2021	Germany, Czech Republic	Sesame paste from Syria	Nuts, nut products and seeds

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