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Vibrio cholerae |
Colonies of Vibrio cholerae surrounded by a zone of beta-hemolysis. Cultivation 24 hours, at a temperature of 37°C.
Beta-hemolytic colonies of Vibrio cholerae on blood agar
Hemolytic colonies should have clear zones around them where red blood cells have been totally lysed, and a suspected hemolytic strain should be compared with a strongly hemolytic control strain. Strains that give incomplete hemolysis (incomplete clearing of the red blood cells) should not be reported as hemolytic.
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Microscopy:
Gram-negative, curved, non-spore-forming rods. |
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