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Antibody responses to the SF162 gp120 protein in immunized macaques in stage II of this study. (A and B) Antibody titers in serum samples were measured by ELISA. (C) Antibody responses in saliva and rectal lavage fluid were detected by Western blotting. For Western blotting, a 1:7.5 dilution of rectal lavage and saliva samples was used. The starting dilution of serum used for ELISA was 1:100. IR, intrarectal.
