text: <unk>  is a pathogenic bacterium belonging to the genus Salmonella, and was  earlier known as Salmonella subspecies V or S. enterica subsp.<unk>  or S. choleraesuis subsp.<unk> . It is a Gram negative rod-shaped bacterium (bacillus) which causes a gastrointestinal disease called salmonellosis, characterized by cramping and diarrhoea. It is typically considered a microbe of cold-blooded animals, unlike other members of the genus, and is most frequently associated with reptiles.
  It was discovered in 1966 from a lizard in the city of<unk>  Chad, from which the specific name<unk>  was derived.  After decades of controversy in Salmonella nomenclature, it gained the species status in 2005.
option_0: Salmonella bongori
option_1: Salmonella enterica
option_2: Giardia lamblia
option_3: Salmonella enteritidis
option_4: Shigella dysenteriae
option_5: Campylobacter jejuni
option_6: Clostridium difficile
option_7: Escherichia coli O157:H7