HIV outside the body (1 Viewer)

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I was searching for explanations regarding the ability of HIV to retain its ability to infect once outside the body. I know that the CDC states that natural concentrations of the virus will virtually be completely destroyed once the infectious fluid containing the virus has dried. However, I think I recall reading elsewhere that once outside the host, exposure to oxygen and the sudden temperature change will "quickly" cause the virus to lose its ability to infect, although the virus may still be active in the fluid.

I was wondering if anyone could provide further explanation on the ability of HIV to infect once exposed to the environment, (if it relates to the cell walls beginning to breakdown) and if there is even any truth to what I have stated regarding infectiousness and initial breakdown of the virus.
 

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