Salmonella typhimurium

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Salmonella typhimurium


A rod-shaped Gram-negative enterobacteria; cause typhoid fever and food poisoning; can be used as a bioweapon.


Scientific classification
Kingdom Bacteria
Class Gamma Proteobacteria
Order Enterobacteriales
Family Enterobacteriaceae
Genus Salmonella
Species S. typhimurium
Binomial Salmonella typhimurium


Contents

[edit] Surface Characteristics

LPS is composed of three parts: (1) lipid A, (2) core polysaccharide, and (3) O antigen. The lipid A region contains two glucosamine sugar derivatives, each with three fatty acids and phosphate or pyrophosphate attached. The core polysaccharide has KDO and attached to lipid A. The side chain O is small polysaccharide chain extending outward from the core, it has several peculiar sugars and varies in composition between bacterial strains.

[edit] Transmission

Salmonella infections are zoonotic and can be transferred between humans and nonhuman animals. Many infections are due to ingestion of contaminated food.

[edit] Pathogenic Activity

S. Typhimurium, causes a wide range of infections in birds and mammals, ranging from self-limiting gastroenteritis to severe systemic paratyphoid diseases; conveyed by contaminated foodstuffs; causes Salmonella enteritis (food poisoning) in humans.

[edit] References

Wikipedia

Salmonella typhimurium