Nutu Lara

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alpha, beta,gamma hemolysis

Blood Agar- Composition, Preparation, Uses and Pictures. Blood agar plates are enriched medium used to culture those bacteria or microbes that do not grow easily.

Streak plate of Streptococcus pyogenes (incubated @ 37 degrees C for 48 hrs) showing beta hemolysis, complete lysis of red blood cells, around the isolated colonies. Image taken using transmitted light.

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Beta hemolysis will appear as a clearing in the sheep blood agar. This is a characteristic of Streptococcus pyogenes the agent of Strep throat.

Beta hemolysis will appear as a clearing in the sheep blood agar. This is a characteristic of Streptococcus pyogenes the agent of Strep throat.