Q and A


I’m undetectable, can I transmit HIV to my partner?

I’m positive and undetectable. My girlfriend is negative, can I transmit HIV to her?


Thanks for getting in touch.

When a person has an undetectable viral load, they cannot transmit HIV through sexual intercourse when not using a condom. There’s more about this here:



  1. Roy Trevelion

    Hi Charles,
    Sexual dysfunction is not generally reported as a side effect of the HIV drugs you are taking. You can read more about this in the i-Base guide to HIV and quality of life. This guide also lists medical conditions that could be linked to sexual dysfunction.

    However, many people find it difficult to talk to their doctor about this aspect of their lives and it is something that doctors rarely ask patients about directly. Is it possible you to do this?

  2. Charles

    Since I started taking tenofovir, efavirenz and emtricitabine, I have this problem I don’t have feeling for sex. Sometimes when I want to have sex with my wife I reases in one or two Minus. Can I stop taking this drugs?

  3. Roy Trevelion

    Hi Alex,
    Side effects with PEP can depend on the meds used for PEP in your country. Yellow eyes and skin (jaundice) can be a side effect of atazanavir. This side effect was reported with indinavir too, but this is rarely used now. Small increases in bilirubin – a waste product of bile – are not causing any damage to your body but they can cause yellowing of eyes and skin. It’s good to know your lab liver tests were OK. You can read more info at this link

  4. Alex

    Kindly assist I had a first encounter with my partner we had sex, after a week from the first encounter we had another sex and the following day we had HIV test and she tested positive and I Negative and I was put under PEP for now it is two weeks under medication
    I have developed yellow eyes I had lab test abs I was told the liver is OK k should continue with medication
    It is OK with me ??!!

  5. Roy Trevelion

    Hi Telvin,
    We don’t answer questions about testing and transmission. But you can find all answers to this here.

  6. Telvin

    I had an oral sex with a HIV positive person, and had a pcr test ten days and came back positive. I still had a rapid determine test after twelve days which came back negative. Please what should I do this is.


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