two monoclonal antibodies , 1b7 and 3f10 , specific for a subunit which has no binding activity to haptoglobin and sheep erythrocytes , named s1 , and one antibody , 1h2 , for a subunit related to the binding activity of the pertussis toxin molecule to haptoglobin or sheep erythrocytes , named s4 , were examined for mouse protective activity against pertussis infection .
C0003250
monoclonal antibodies
C0003241
antibody