PGMCET 2012 RECALL- Kauffman White classification

The nomenclature for the genus Salmonella has evolved from the initial one serotype-one species concept proposed by Kauffmann on the basis of the serologic identification of O (somatic) and H (flagellar) antigens. Each serotype was considered a separate species (for example, S. paratyphi A, S. newport, and S. enteritidis); this concept, if used today, would result in 2,463 species of Salmonella. Other taxonomic proposals have been based on the clinical role of a strain, on the biochemical characteristics that divide the serotypes into subgenera, and ultimately, on genomic relatedness.

Salmonella species, subspecies, serotypes, and their usual habitats, Kauffmann-White scheme

Salmonella species and subspecies	No. of serotypes within subspecies	Usual habitat
S. enterica subsp.enterica(I)	1,454	Warm-blooded animals
S. enterica subsp.salamae (II)	489	Cold-blooded animals and the environment
S. enterica subsp.arizonae (IIIa)	94	Cold-blooded animals and the environment
S. entericasubsp.diarizonae (IIIb)	324	Cold-blooded animals and the environment
S. enterica subsp.houtenae(IV)	70	Cold-blooded animals and the environment
S. enterica subsp. indica(VI)	12	Cold-blooded animals and the environment
S. bongori(V)	20	Cold-blooded animals and the environment
Total-                                     2463