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Postinfection salivary and fecal IgA antibodies in vaccinated animals. (A) Salivary SIV gp140-specific IgA activities at weeks 4 and 8 and at the time of euthanasia in controller and noncontroller animals. (B) Fecal gp140-specific IgA activities at weeks 2 and 6 and at the time of euthanasia in controller and noncontroller animals. The different time points in panels A and B are a result of sample availability. Nx, necropsy.
