Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person’s anus, or anus and rectum, for sexual pleasure. Other forms of anal sex include fingering, the use of sex toys for anal penetration, oral …

Safer-Sex Methods: HIV InSite Knowledge Base Chapter December 2003; Content reviewed January 2006: Tim Lane, PhD, MPH, University of California San Francisco Herminia Palacio, MD, MPH, Harris County Health Department, Houston, Texas

EpiModel. Mathematical Modeling of Infectious Disease. EpiModel is an R package that provides tools for simulating and analyzing mathematical …

Risk of HIV transmission from different types of unprotected sex . Number of individual studies. Range of estimates . Meta-analysis estimate . Receptive anal

Anal Sex. In a 2010 scientific testimonial article of heterosexual anal sex, the term anal intercourse is utilized to refer especially to penile-anal penetration, and also rectal sex is used to refer to any kind of kind of rectal sex.

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Many people have questions about anal and oral sex. Are they safe? What are the risks? Can you get pregnant or get a sexually transmitted

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Anyone can enjoy anal sex, but it’s really important to do it safely so use a condom and lots of lube to prevent friction.

There is a misperception among many gay men that the insertive or ‘active’ partner in anal intercourse is at minimal or no risk of HIV infection. 1 (This may well be the belief among many heterosexuals as well.)