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Hiv in blister fluid

Question: 

Is there hiv in blister fluid from a burn? my friend who has sex without protection a lot had a burn on his finger that popped when we were out together. Then my boyfriend had a scratch that bled on his own finger but during the night we were all sharing the leash of my friends dog. I was wondering if blister fluid got on my boyfriends wound would it be dangerous?

Answer: 

Hello,

Thank you for your inquiry. From what we gather from the question, you were asking about the risk of HIV transmission from making contact with a dog leash which may have contained your boyfriend's blood and the blister fluid of your friend. From the information given, this scenario is determined to be Negligible Risk (there is no evidence or no documented cases of transmission).

The scenario mentioned above does not meet the three components of the transmission equation. It does not satisfy the transmission equation because the fluid from your friend's blister has been exposed to the outside environment. HIV is not known to survive for prolonged periods of time outside the human body (such as on surfaces) and it also cannot reproduce outside the human body (1).

The HIV transmission would be satisfied if there was direct contact between your boyfriend's wound and the fluid from your friend's blister. However, because the fluid was already exposed to an environmental surface (in this case being the dog leash) and there is no evidence of direct contact, the possibility of transmission is Negligible.

Recommendation: There is no evidence or no documented cases of transmission. Refer to Physician for more personalised answers.

Regards,

AIDS Vancouver Helpline/Online, Mahtab