Description : A solid medium which contains the highly nutritious infusions recommended for the cultivation of fastidious organisms. Description Brain Heart Infusion Agar may be recommended for the cultivation of streptococci, neisseria and other fastidious organisms. Seth1 described the use of Oxoid Brain Heart Infusion with agar for the isolation of N. gonorrhoeae. Oxoid Brain Heart Infusion Agar was designed to be equivalent in performance. The addition of 10% v/v horse blood plus vancomycin 3.0mg/ml,