NguyenThanhSang
i know hiv does not die immediately when exposed to oxygen but does hiv lose the ability to transmit immediately when exposed to oxygen or does it take some time?
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helpline-volunteer
Hi there,

Thank you for your question. From what we gather from your question, you are inquiring about the inability of HIV to be transmitted after being exposed to oxygen within a given time frame.

HIV does not die immediately when exposed to oxygen (it goes through a rapid decrease in concentration) so you are correct in stating that. After being exposed to air, the HIV in the fluid starts to dry up and results in a 90%-99% reduction in concentration within several hours (1). In addition, exposure to oxygen is not the only aspect that affects HIV transmission. There are three components in our HIV Transmission Equation that need to be met for there to even be a risk of transmission: bodily fluids, direct access to the bloodstream and the presence of a high risk activity. All in all, there are many factors that need to be considered in order for HIV transmission to be possible in addition to the virus being exposed to oxygen.

Please refer to our  HIV Transmission Equation below for more information:
Helpline Transmission Equation .jpg 
Resources:

HIV and Oxygen

Thank you
AIDS Vancouver Helpline/Online, Shawn

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