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Salmonella, the Organism

According to the new nomenclature based on DNA relatedness only two species can be recognized:

Salmonella bongori

Salmonella enterica
All human pathogens may be regarded as serovars of the subspecies I of S.enterica.  In most countries with Salmonella surveillance S.enterica serovar Typhimurium and S.enterica serovar Enteritidis are the two most commonly reported1