1963.-by use of wadsworth 's modification of the gel diffusion test of ouchterlony for the assay of enterotoxin , cultivation on semisolid brain heart infusion agar of ph 5.3 permitted the detection of the production of staphylococcal enterotoxin a with all of 49 strains without concentration of their toxins .
C0014372
enterotoxin
C0040549
toxins