Lies between 0 and 100%; 0% indicates no observed heterogeneity and larger values show increasing heterogeneity. Prep is much less effective when it is not taken consistently. ); uk medical research council (mrc) (to r. Please note that some content on this website contains language, information and images related to sexuality and drug use, and may not be intended for people of all ages.
How do you get hiv from unprotected sex?
No hiv transmissions occurred among stable serodiscordant gay male couples who engaged in approximately 11,000 condomless anal sex acts (where the hiv-negative person was the insertive partner). However, use of haart was found to reduce viral loads in the semen, but not rectal secretions (p = 0. However, such tissue damage is not necessary for infection to occur: the rectal tissue itself is rich in cells which are directly susceptible to infection.