salmonella

prop. n. [ After Daniel E. Salmon, a U. S. pathologist (1850-1914). ] A genus of gram-negative bacteria that may be motile or non-motile; they are typically rod-shaped and may be aerobic or facultatively aerobic. They may be pathogenic for humans and other animals. Their metabolism is fermentative, and they produce acid and usually gas from glucose, but they do not metabolize lactose. The type species is Salmonella cholerae-suis, which is found in pigs. Other species, pathogenic in man, are Salmonella typhi (Salmonella typhosa), Salmonella typhimurium, and Salmonella schotmulleri, whih cause typhoid fever, food poisoning, and enteric fever, respectively. Stedman. [ PJC ]