Salmonella are a diverse group of bacteria. Scientists classify Salmonella into serotypes (types) by identifying structures on the bacteria's surfaces. Although more than 2,500 serotypes have been described, fewer than 100 are known to cause human infections.
Is all Salmonella the same?
The two species of Salmonella are Salmonella enterica and Salmonella bongori. S. enterica is the type species and is further divided into six subspecies that include over 2,600 serotypes. Salmonella was named after Daniel Elmer Salmon (1850–1914), an American veterinary surgeon.
Can you have mild Salmonella?
Most cases of salmonellosis are mild; however, sometimes it can be life-threatening. The severity of the disease depends on host factors and the serotype of Salmonella.
What are the different types of Salmonella infections?
Some infectious disease texts recognize three clinical forms of salmonellosis: (1) gastroenteritis, (2) septicemia, and (3) enteric fevers. This chapter focuses on the two extremes of the clinical spectrum—gastroenteritis and enteric fever.
Are there different strains or types of Salmonella?
There are more than 2,000 strains of Salmonella. The different strains of Salmonella are categorized based on the specific antigen set of each. Antigens are substances that stimulate the body to fight pathogens. These antigen-based subsets are called serotypes.
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