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Binding of sera or affinity-purified antipeptide Ab’s to bacterial extracts or to tetanus toxoid. Binding of sera derived from mice immunized with H. influenzae, N. gonorrhoeae, or tetanus toxoid at sera dilution of 1:20, are described in lanes A, C, and E, respectively. Antipeptide Ab’s affinity purified from the same immunized mice are described in lanes B, D, and F, respectively.
