Background: Salmonella enterica subsp. enterica serovar (S.) Dessau (antigenic formula 1,3,15,19:g,s,t:–) is a
serovar of the O:1,3,19 (E4) serogroup. This serovar is extremely rare with only few isolates
described by January 2023. S. Dessau has reaction against antisera 15 (O15) which is caused by
phage conversion. Within the O:1,3,19 (E4) serogroup, the serovar S. Senftenberg (antigenic
formula 1,3,19:g,[s],t:–) is serologically similar to, and much more common than S. Dessau.
Given the high similarity between the two antigenic formulae of these two serotypes, in silico
serotyping tools such as SeqSero2 and SISTR may classify isolates serologically classified as S.
Dessau as S. Senftenberg.
Animal reservoir: Serovar Dessau was found in retail chicken meat.
Geographical distribution: Serovar Dessau has been found in Germany and Korea.
Outbreaks: No outbreaks have been associated with S. Dessau.
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