704.Comments at a press conference, National HIV Prevention Conference, Atlanta,Georgia, August 30, 1999.
705.这些数字来自瑞士日内瓦的联合国艾滋病规划署1998年和1999年年度报告。根据联合国艾滋病规划署的资料,到1998年年底,这一流行病的传播情况如下:
706.Gao, F., Bailes, E., Robertson, D. L., et al., “Origin of HIV-1 in the chimpanzee Pan troglodytes troglodytes.” Nature 397 (1999): 436-441; and Weiss, R. A. and Wrangham, R. W.,“From Pan to pandemic.” Nature 397 (1999): 385-386.