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Semen on underwear

Question: 

<!--break-->Last week I had a surgery. I changed all my clothes and put it in a room and wear the gown given by nurses. Later I saw the operation threatre boy changed his dress in the same room where I put all my clothes. I am scared that the boy may be hiv positive and ejaculated in my underwear. I wear the same underwear . Is there is any risk of getting hiv if the boy is hiv positive and ejaculated in my underwear and I wear the same underwear after 7 hours? Please help me

Answer: 

Hi there,

Thank you for your inquiry. From what we gather from the question, you were asking about the possibility of HIV transmission in the event that you put on a pair of underwear that may have had semen in it from 7 hours earlier. From the information given, this scenario is determined to be of No Risk (HIV transmission is not possible in the given scenario).

This scenario does not meet the 3 requirements of our HIV Transmission Equation. It does not meet the requirements of the equation because: Although possible HIV positive fluid may be present in the underwear, there is no direct access to the bloodstream through a High, Low, or Negligible Risk activity.

In this case, there is no risk of HIV transmission to you because of the lack of direct access that the HIV positive fluid would have had to your bloodstream. Semen that has been on an environmental surface (such as the underwear described above) would have had a significant amount of time exposed to oxygen; thus, rendering any trace of HIV in the fluid inactive. HIV outside of the body or drying HIV positive fluid causes a rapid reduction in HIV concentration, making the HIV difficult to transmit through any avenue (1).

Recommendation: No need for HIV testing in the given scenario. Please refer to a healthcare professional for any additional health related questions.

All the best,

AIDS Vancouver Online/Helpline, Cody