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Harrison's Principles of Internal Medicine, 18e
| Part 8. Infectious Diseases > Section 6. Diseases Caused by Gram-Negative Bacteria > |
Chapter 153. Salmonellosis
Sections: Salmonellosis: Introduction, Enteric (Typhoid) Fever, Nontyphoidal Salmonellosis, Further Readings.
Topics Discussed: gastrointestinal infections and enterotoxigenic poisonings; salmonella infection.
Excerpt:"Bacteria of the genus Salmonella are highly adapted for growth in both humans and animals and cause a wide spectrum of disease. The growth of serotypes S. typhi and S. paratyphi is restricted to human hosts, in whom these organisms cause enteric (typhoid) fever. The remaining serotypes (nontyphoidal Salmonella, or NTS) can colonize the gastrointestinal tracts of a broad range of animals, including mammals, reptiles, birds, and insects. More than 200 serotypes are pathogenic to humans, in whom they often cause gastroenteritis and can be associated with localized infections and/or bacteremia.This large genus of gram-negative bacilli within the family Enterobacteriaceae consists of two species: S. enterica, which contains six subspecies, and S. bongori. S. enterica subspecies I includes almost all the serotypes pathogenic for humans. According to the current Salmonella nomenclature system, the full taxonomic designation S. enterica subspecies enterica serotype typhimurium can be shortened to Salmonella serotype typhimurium or simply S. typhimurium...."
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