translation.en: Using a campaign that encouraged people to abstain, be faithful, and use condoms -- the ABC campaign -- they decreased their prevalence in the 1990s from about 15 percent to 6 percent over just a few years.
translation.zh: 启用了鼓励人们禁欲，忠贞，并使用安全套的运动 被称为ABC准则。在九十年代它们大大减少了艾滋病的传播 仅仅几年内就从百分之15减到了百分之6