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CTL responses in four ethnic groups are distributed over the entire HIV genome and cluster in immunodominant regions. The total HIV-specific CD8+-T-cell activities for 59 African-Americans, 26 Caucasians, 44 Hispanics, and 21 West Indians were tested using an OLP set of 410 peptides. The frequencies of recognition for each single peptide in the four ethnicities are shown. The horizontal box at the bottom indicates the HIV proteins spanned by the OLPs.
