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Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Corynebacteria grow aerobically on nutrient agar at 37 degrees centigrade. However, they exhibit better growth on blood or serum agar. With brain-heart infusion agar, colonies form within 24 hours and are convex, circular and cream-coloured.

Loeffler's serum is the special medium used for the isolation of C. diphtheriae.

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