Anonymous
hello,I had a puncture from lancet on my finger, during lab work ,and my friend took it into his mouth.
I know saliva should have visible blood in it for it to be risky,my question is i didn't saw any blood on his tongue and neither in his saliva when he took out my finger from his mouth.
So should i worry about this exposure?

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Anonymous
Hello and thanks for reaching out to the AIDS Vancouver Helpline.

It sounds like you are concerned about the likelihood of acquiring HIV from the described scenario.

From what you have told me, you are concerned about the likelihood of acquiring HIV from a lancet puncture on your finger during lab work, and your friend decided to put your finger into his mouth. It is important to note that there are enzymes in saliva that damage HIV greatly. These enzymes breakdown the HIV virus to the point where they are no longer transmissible. Furthermore, for there to be a risk of HIV transmission there needs to be a body fluid, an activity such as unprotected anal or vaginal intercourse and a direct access for the virus to enter the bloodstream. Thus, in your particular scenario you would be at No Risk of acquiring HIV.

Below I have attached an HIV Transmission Equation chart, which goes into further detail about the necessary factors that are required for there to be a risk of HIV transmission.

HIV TRANSMISSION EQUATION


BODY FLUID
+
ACTIVITY
+
DIRECT ACCESS TO BLOODSTREAM
---------- -------- ----------------------------
• blood (including menstrual) • unprotected anal or vaginal intercourse • vagina
• semen • sharing needles • anus
• pre-cum • mother to child (in specific cases) • urethra in the penis
• rectal secretions • open cuts and sores (in theory)
• vaginal fluids • other mucosal membranes
• breast milk • points of needle injection
For more information on HIV you can visit [HIV Basics](http://catie.ca/en/basics/hiv-and-aids#how).

Regards,

Chris, Volunteer

AIDS Vancouver Helpline/Online

helpline.aidsvancouver.org

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= RISK OF HIV TRANSMISSION