when class-specific antibody activity was measured with the red cell linked antigen-antibody reaction test , antibody activities of serum igg to type 3 slightly declined and of effusion igm and iga to type 3 increased following type 3 infection , whereas following type 23 infection antibody activities of serum igg to type 23 increased and no antibody activities of iga and igm to type 23 were present in the effusions .
C0003241
antibody
C2825347
iga