Anaerobic CNA Agar Base is recommended for the selective isolation of anaerobic Streptococci.used for the selective isolation of anaerobic gram-positive cocci including Streptococci. The media was rendered selective by the addition of selective agents, colistin (C) and nalidixic acid (NA). This supplemented Columbia Agar (with C & NA) exhibits luxuriant growth of fastidious organisms like Streptococci, Enterococci, and Staphylococci etc on supplementation with sterile defibrinated sheep blood.
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