Background information: Salmonella enterica subsp. enterica serovar Leeuwarden (antigenic formula 11:b:1,5) is a serovar of the O:11 (F) serogroup. This serovar was first identified by A. B. Wielenga from a stool sample of a five-month-old baby with enteritis in the Netherlands. FDA found this serovar in organic ground oregano. 

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

Genetic characteristics: Serovar Leeuwarden is considered rare, and there is no known literature that has studied it.

Animal reservoir: No animal reservoirs have been identified for serovar Leeuwarden.

Geographical distribution: Serovar Leeuwarden has been reported in the US, Central African Republic, and Europe such as Netherlands, Austria, Czechia, and Germany. 

Human outbreaks: There have been no recent human outbreaks linked to this serovar.

Border rejections:

Year

Exporting country

Importing country

Associated source

Product category

2020

Bulgaria

Sweden

Sunflower seeds

Feed materials

Recalls: There have been no recent recalls linked to this serovar.

Relevant links:
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