Anonymous
Hello,

I remember an incident with my brother who is HIV+ in the past before his diagnosis. We were messing around and I tackled him
and accidentally slashed his skin causing him to bleed with my teeth. Immediately afterwards, my teeth bit the left tip of my tongue. My left tip of
my tongue was already inflamed due to lack of sleep and lack of nutrition which caused the biting to cause immense pain.

The scary thing is I don't know if the biting my tongue caused bleeding in my mouth (does this count as a DIRECT access to my bloodstream) as it happened simultaneously as the biting. There could have been blood in my mouth due to the biting but I don't remember. Has there been cases like this? I'm afraid that my brother's blood could have been in contact with the fresh wound that was created immediately after my teeth slashing him then my teeth accidentally biting my own tongue in the process.

Thank you.
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Anonymous
Hello,

Thank you for your inquiry. From what we gather from the question, you were asking about the risk of acquiring HIV after biting your brother. From the information given, this scenario is determined to be Low Risk (evidence of transmission occurs through these activities when certain conditions are met).

The scenario mentioned above could meet the three components of the [Transmission Equation](https://www.aidswindsor.org/healthy-me/hiv-transmission/) if enough blood containing HIV got into your mouth and gained access to your bloodstream through the mucous membrane or cuts in your mouth. It is important to note that it is very rare for transmissions to occur after biting someone living with HIV, but it can still occur (1). For context, the risk of transmission of HIV after an occupational exposure of the eyes, nose, or mouth (mucous membranes) to blood containing HIV is estimated to be 0.1% (2).

Recommendation: Refer to a physician for an HIV test.

Regards,

AIDS Vancouver Helpline/Online, Marie
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