Figure 10-2. Reagent arrangement for serological identification of B. cereus diarrheal antigen: 1) antiserum to B. cereus antigen; 2) test preparation; 3) B. cereus toxin reference; 4) test preparations; and 5) test preparations¹.

1(1) Bivalent 1. Combination antisera (e.g., anti A and B) 2. Preparation under test 3. Reference enterotoxin (e.g., anti A) 4. Preparation under test 5. Reference enterotoxin (e.g., anti B)

(2) Monovalent 1. Antiserum (e.g., Antiserum (anti A) 2. Dilutions of preparation under test 3. Reference enterotoxin (e.g., type A) 4. Dilutions of preparation under test 5. Dilutions of preparation under test