More PrEP for vaginal sex

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07 Nov 2014

A study has found more PrEP is needed to prevent HIV via vaginal sex than anal sex. Results have shown that, while two doses of Truvada were sufficient to maintain the necessary ratio in rectal tissue throughout a population, a daily dose of Truvada would only yield the same ratio in vaginal tissue in 75% of a cohort of women, and in the cervical tissue of only half of the women.

These latest findings — presented at the recent research conference in Cape Town South Africa — appear to corroborate the results of two trials (Voice and FEM-PrEP) which have both shown disappointing PrEP efficacy among women.