Background: Salmonella enterica subsp. enterica serovar Ruiru (antigenic formula 21:y:e,n,x) is a serovar of the O:21 (L) serogroup. This is a very rare serovar, with only two reported cases during the last then years in the US.

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

Genetic characteristics: Unknown. 

Animal reservoir: Serovar Ruiru was found in cattle, and turkey. 

Geographical distribution: S. Ruiru is a very rare serovar, only a limited number of descriptions have been reported; specifically, one report of infection in sheep in England and two in Europe (imported soybean from Brazil and imported palm kernel expellers from Indonesia).

Animal outbreaks: There is only one description of an outbreak in sheep associated with S. Ruiru, the outbreak was reported in 1964, where it caused abortion in ewes.

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

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:

  1. http://www.pdv.nl/lmbinaries/rasff_week_46_-_2013.pdf
  2. http://www.ncbi.nlm.nih.gov/pubmed/14198341
  3. http://www.sciencedirect.com/science/article/pii/S0368174264800382
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