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Study design. Immunization regimens. The total numbers of animals per group and of MamuA*-01+ macaques included in each group are indicated in parentheses. A single inoculation of the anti-CD4 antibody was given 45 weeks before challenge exposure to macaques in groups 2 and 4. Four inoculations of the anti-CD8 antibody were given before challenge exposure to animals in group 5. α, anti.
