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6 Cards in this Set
- Front
- Back
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What is the genus of salmonella?
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Salmonella is a very large genus of bacteria. One species is of interest. S. enterica is divided into many serovars, based on variation in the major surface antigens.
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How are salmonella identified?
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Many gram - enteric bacteria are named and designated according to specific antigens. H, the flagellar antigen; K, the capsular antigen; and O, the cell wall antigen. Not all carry the H/K antigens but all have O, the polysdaccharide antigen portion of the lipopolysaccharide implicated in endotoxic shock.
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List some characteristics of Salmonella.
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They are motile, ferment glucose with acid and most of them produce H2S, but not urease.
Grow readily on most lab media and can survive in many inhospitable environments. |
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Whereas typhoid fever is caused by the typhi serovar, gastroenteritis' are generally caused by which serovars?
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paratyphi/hirschfeldii, and typhimurium.
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What is Arizona hinshawii?
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This is a Salmonella and a pathogen found in the intestines of reptiles. Most of these starins come from animals, unlike the typhi starin, which infects humans.
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Salmonella bacteria are normal intestinal flora in cattle, poultry, rodents and reptiles. TRUE/FALSE
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TRUE.
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