ATCC MEDIUM 18 TRYPTICASE SOY AGAR Use for the isolation and cultivation of a wide variety of fastidious and non fastidious microorganisms. Upon supplemented with sheep blood, is use for the observation of hemolytic reactions of a variety of bacteria. Also use to perform the CAMP test for the presumptive identi cation of group B streptococci (Streptococcus agalactiae). For total aerobic portion of microbial limit testing as per USP.