Sources of HIV Infection

In my section on Thursday there was a question about what percentage of people acquire HIV from sexual intercourse, through the sharing of needles, and by other means. I was unable to find any general statistics on the subject but I did find a study conducted in Norway which examines the number of people infected by different sources from 1984 to 2006. The results of this study show that nearly fifty percent of all new cases during these period were acquired by heterosexuals through sexual intercourse, 31 percent by homosexuals through sexual intercourse, 15 percent from the use of contaminated needles, and 1 percent from both blood transfusions and from mother to child. For more specifics on this: Click Here.