 According to a 2000 report by the National Institutes of Health ( <unk> ) , consistent use of latex condoms reduces the risk of HIV / AIDS transmission by approximately 85 % relative to risk when unprotected , putting the <unk> rate ( infection rate ) at 0 @.@ 9 per 100 person @-@ years with condom , down from 6 @.@ 7 per 100 person @-@ years . Analysis published in 2007 from the University of Texas Medical Branch and the World Health Organization found similar risk reductions of 80 – 95 % . 
