看到有个网页说
美国疾管局公布了2008年全国21个大城市的男同性间性行为者
(Men who have sex with men ,简称MSM)HIV盛行率调查,
发现全国MSM的HIV盛行率是19%。
然后我google找到这个pdf档 https://goo.gl/eqagff
The median HIV prevalence among gay men and other men who
have sex with men is 19% in western and central Africa and 13%
in eastern and southern Africa.
所以美国真的每5个男同志就有1个有爱滋病吗
有没有八卦