Salmonellosis (Nontyphoidal)

Infectious Agent

Salmonella enterica subspecies enterica is a gram-negative, rod-shaped bacillus. More than 2,500 Salmonella serotypes have been identified, but only a small proportion are commonly associated with human illness. Nontyphoidal salmonellosis refers to illnesses caused by all serotypes of Salmonella except for Typhi, Paratyphi A, Paratyphi B (tartrate negative), and Paratyphi C.

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