Term
| Intestinal pathogens in the family Enterobacteriaceae are Gram-negative bacilli. |
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Definition
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Term
| All intestinal pathogens are motile. |
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Definition
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Term
| EMB or MacConkey agar is more useful than SS agar or enrichment broth to isolate Shigella. |
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Definition
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Term
| A streak plate after incubation should bear isolated colonies. |
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Definition
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Term
| An innoculating loop is used to pick a pure colony. |
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Definition
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Term
| If a pure colony does not ferment lactose on selective differential media and produce H2S on a TSI slant, it is one of the salmonella species. |
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Definition
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Term
| Enrichment broth enhances the growth of salmonellas. |
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Definition
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Term
| Enrichment broth, when subcultured to SS agar, in the case of carriers, yields more uncolored colonies than direct plating of the patient's stool specimen. |
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Definition
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Term
| A positive urease test is manifested by a black precitate. |
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Definition
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Term
| A TSI slant inoculated with an enteric pathogen will have an acid slant and an alkaline butt after incubation. |
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Definition
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Term
| When urea is hydrolyzed by a bacterium, enteric pathogens have been ruled out. |
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Definition
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