Q and A

Question

How long does HIV survive outside the body?

How long does HIV live outside the body in blood. Some info says 30 secs other go as far as to say hours.

Can HIV come alive and infectious if dried and then gets wet again?

I know that this seems like a weird question but I do have a legitimate reason for asking.

Answer

Thank you for your question.

To answer your question, please see a similar question by following this link.

It is difficult to put an exact time on how long HIV can live outside the body as it depends on many factors. In general, HIV cannot live outside the body for more than a few minutes even in optimum conditions.

Once blood is dried, even if it becomes wet again, HIV will not become infectious again.

44 comments

  1. Josh Peasegood

    Hi John, there is no risk of transmission.

    Please follow this link for more information: https://i-base.info/qa/factsheets/hiv-transmission-and-testing

  2. John

    Hi
    When swim in dead sea i am touched the vagina of girl for less than 5 sec under the water and don’t make any thing just touching
    And I don’t think i am touched any vaginal fluid then after 2 min i am touched scratched in my shoulder because the cord in sea does this make me at risk for HIV ??
    And need to make any test ??

  3. Josh Peasegood

    Hi Tekan, there are too many variables to answer this question. Time of blood drying can be impacted by the surface it is on, the temperature of the room, how much blood there is, the environment of where the blood is…What is more important here is that HIV cannot live for more than a few minutes outside of the body. Not if the blood is dried or not.

  4. tekan

    How long does it take blood to dry outside the body??

  5. Roy Trevelion

    Hi Patrck,

    As Charlotte says, In general, HIV cannot live outside the body for more than a few minutes even in optimum conditions.

    Please see this link to ways that HIV is not transmitted.

    However, in this case it looks like there was no blood or sexual fluid to transmit HIV.

  6. patrck

    I would like to know how long does HIV survive in wet blood while outside the body like on condom after sex. Does the HIV virus die when the blood has dried up outside the body or even in wet form the virus dies outside the body?

    suppose lady had a knife cut on her finger two days ago, the wound does not have blood but that raw meat can be seen, after washing her hands, the wound looked wet with water but blood was not there but that meat is seen. and then this lady touches your head’s penis or uretha. does this pose HIV transmission to a man?

    thanks for your quick reply.

  7. Roy Trevelion

    Hi David,
    As Charlotte says, it can be just a few minutes.

  8. David

    How long does the HIV virus remain active once it leaves the body of an infected person?

  9. Charlotte Walker

    Yes it does

  10. amy

    Does this go for needles lying around?

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