Hello Doctors,

I am a heterosexual male from Puerto Vallarta, Mexico, and had an encounter with a female sex worker approximately 6 hours ago at a regulated establishment in Puerto Vallarta.

Vaginal intercourse was condom protected from the beginning. I did not ejaculate at any point before the event in question.

Near the end of intercourse, I withdrew my penis from her vagina and immediately noticed that the condom was no longer on my penis. At that same moment, the woman told me that the condom had just come off. The condom was visibly hanging from the vaginal opening when I saw it. I removed it and immediately put on a new condom before continuing.

There was no visible blood, trauma, or rough sex. The woman stated that there had not been any unprotected intercourse and that the condom came off at the moment I withdrew. Based on what I observed, that seems plausible, although I cannot know with certainty exactly when the condom detached.

The woman appeared to be approximately 30 years old and was working at a regulated establishment. I do not know her HIV status.

My questions are:

1. Based on this description, would you consider this a meaningful HIV exposure?

2. In your opinion, would HIV PEP be recommended, optional, or unnecessary?

3. Beyond HIV, would you consider this a significant exposure for other STIs such as gonorrhea, chlamydia, syphilis, herpes, or hepatitis B?

4. Given the circumstances, would you recommend doxycycline PEP?

5. If you were counseling a patient with this exact exposure, would you recommend any HIV or STI testing at all?

6. If HIV testing is reasonable for reassurance, would a negative 4th-generation HIV test at 4 weeks be considered conclusive or sufficiently reassuring?

Thank you very much for your time.

 I just remembered an additional detail that I think its impotant.

The additional detail concerns an event that occurred afterward. Approximately 10 minutes after vaginal intercourse ended, the same condom that had been used during intercourse was picked up from the floor and reused. The woman placed her fingers inside the previously used condom, added lubricant, and then inserted those condom-covered fingers into my anus.

My concern is that the condom had previously been in contact with vaginal secretions during intercourse and that those secretions may have subsequently come into contact with my rectal mucosa during the anal fingering. However, the condom had been off my penis and on the floor for approximately 10 minutes before being reused in this manner.

Thank you very much, Dr. Handsfield. Your explanation has been extremely helpful and reassuring.

Just one final question: based on your assessment that this was not a meaningful HIV exposure and that the risk of other STIs was very low, would you consider it safe for me to have unprotected sex with my regular partner, or would you recommend waiting for any testing first?

Thank you again for your time and expertise

Hi Doctor,

I remembered one additional detail about the encounter. At one point, I inserted two fingers into the woman's anus for a short period of time. I had no cuts, abrasions, bleeding, or visible skin damage on my fingers, and I do not recall seeing any blood.

Does this detail change your assessment of my HIV risk in any way? Would this still be considered a zero-risk exposure in practical terms?

Thank you.