| Yersinia pseudotuberculosis |
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Small to medium-sized, grey colonies.
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| The same Blood Agar plate examined with transmitted light. There is no haemolysis. |
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| General characteristics: Gram-negative rods. Catalase-positive and oxidase-negative. Attacks sugars by fermentation. Non-motile at 37°C but motile at 25°C. |
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