Studies with murine and rabbit antibodies. (A) Antibodies in mouse serum measured against the inducing immunogen. Data are plotted as means ± standard error of the mean of five mice immunized with bac-gE fragments or three mock-immunized mice. (B) Rabbit IgG measured against the inducing immunogen (n = 1, 2, and 2 for gE24-224, gE225-398, and gE24-409 IgG, respectively). Imm, immune; Nonimm, nonimmune.