Q and A


My viral load is undetectable, can I transmit HIV through oral sex?

I’ve been HIV+ for 3 years and been undetectable for 2 years. My partner is HIV-.

The last time we had sex he gave me a blow job and I returned the favor as well. I’m a bit worried I could have infected him. Is it possible even if its just a blowjob?

Thank you!


Thanks for getting in touch.

Because you have an undetectable viral load there’s no risk of you having infected your partner when he gave you a blow job. Also, because you’re undetectable if you choose to have sex without a condom the risk of transmission would be close to zero. For more info please see the results of the PARTNER study:



  1. Lisa Thorley

    Hi Nththu,

    How people tell someone about their status varies. However, if you were negative before you started having unprotected sex with your current partner this would suggest that you might have contracted HIV from them. If this is the case, they might not be aware of their possible status. Therefore, they’re going to need to test.

    As for how you tell you’re partner, I can’t really tell you what to do. But doing it sooner rather than later is important. It may end up being a difficult conversation and it could change your relationship, but it’s important that they know.

    Now that you’re aware of your status, it’s important that you start using ARVs. There’s info about this here: https://i-base.info/guides/starting

  2. Ntuthu


    I recently found out that iam Hiv positive,and I have been sleeping with my partner almost 7 months now without a protection.and before being sexually active with him I was HIV-How do I tell him


Your email address will not be published. Required fields are marked *