SCIENTIFIC LIBRARY
Salmonella is a normally motile, Gram-negative, rod-shaped bacterium belonging to the family Enterobacteriaceae. The genus Salmonella is divided into two species that can cause illness in humans (salmonellosis), S. enterica and S. bongori. Salmonella enterica, which is of the greatest public health concern (WHO, 2015), is comprised of six subspecies, namely enterica, salamae, arizonae, diarizonae, houtenae and indica.