The rate of HIV transmission per coital act is highest during; Select one: A. In the middle stage of the infection. B. Early stage of HIV infection. C. Advanced stage of HIV infection. D. Both early and advanced stages. Anal sex increases the risk of HIV transmission compared to vaginal sex because? Select one: A. Anal sex is more painful B. Vaginal sex is more sweeter than anal sex C. Vaginal sex is what was ordered by God D. The anal tissue is much thinner, less elastic and less well lubricated Western blot assay specifically of Select one: A. Opportunistic pathogens