Anonymous
Hi. I'm really concerned about a recent siting of dried blood on a slide my son went down. Since then I can not get a definate answer. Some say dried blood can not transmit hiv but I have Read studies showing it can live for a week in a lab. Please could you tell me if there is any chance of catching hiv from touching or brushing past dried blood with minor cuts. (One being a glass cut which bleed a lot initially but was a few days old). Basically outside of a lab and under normal circumstances can hiv live in dried blood or does it die in a matter of minutes.
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Anonymous
Hi there,

Thank you for reaching out to AIDS Vancouver, I'm happy to address your concerns.

It sounds like you're very worried about your son acquiring HIV from dried blood on a slide. To answer your questions regarding the nature of HIV: when HIV is exposed to oxygen (the air) it dies and becomes unable to be transmitted to another person. This happens nearly instantaneously. HIV cannot live outside of the body, and HIV cannot exist on surfaces, materials, and objects such as a playground slide.

In addition to this, when we talk about acquiring HIV through cuts or wounds, we're talking about wounds that are severe enough to require medical attention such as stitches (fresh gushing blood, not scabbed over or healing).

To summarize, your son is not at risk of acquiring HIV this way.

Below, I have attached the HIV transmission equation which shows the THREE aspects that ALL need to be present in order to acquire HIV.

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
I hope this helped to clarify any confusion you may have had. If you have anymore questions, please do not hesitate to ask. For more information, please visit our website at

All the best,

Leila

AIDS Vancouver Helpline

Phone: 604-253-0566 ext 299

Monday to Friday 10am – 4pm (PsT)

*Anonymous and Confidential*
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= RISK OF HIV TRANSMISSION