Q and A


My viral load is undetectable, can I transmit HIV?

My viral load is 40, can I transmit HIV?


Thanks for getting in touch.

Because you’re viral load is undetectable, you cannot transmit HIV when having sex without a condom. For more info please see here:



  1. Lisa Thorley

    Hi Luis,

    You’re viral load is undetectable so there isn’t any risk. It up to you if you want to discuss your status.

  2. Luis

    Thanxs for your answer Lisa, my actual VL is less of 40 copies, what should I do? Talk with him for get a test? For me is really hard this situation,

  3. Lisa Thorley

    Hi Lusis,

    There isn’t any risk in the scenario that you’ve described. Please also see here: http://i-base.info/u-equals-u/

  4. Luis

    Hello, Im Luis, Hello, I am HIV + for 1 year 6 months, in ART, currently undetectable for 1 year, with CD4 998, recently a guy gave me oral sex for a few minutes, I noticed that he had a small wound in his mouth Maybe he was in contact with my precum, I am very afraid of having infected him, is there any risk of transmission?

  5. Roy Trevelion

    Hi LaShae,

    What HIV treatment (ART) are you taking? It sounds like it’s working well as you’ve been undetectable for two years. Being undetectable on ART means that you cannot transmit HIV even without using condoms. So the simple answer to your question is “no”.

    Please see U=U for much more info.

  6. LaShae

    I have been undectable for 2 yrs.,and had orgasms with unprotected sex,can I transmit HIV to my male partner

  7. Roy Trevelion

    Hi Nonjabulo, Are you on HIV treatment (ART)? If you’re on ART and your viral load test result is undetectable then the risk to your boyfriend is just about zero. Please see the PARTNER study where HIV positive and HIV negative couples had sex without condoms more than 58,000 times – and without a single case of HIV transmission.

  8. nonjabulo

    im hiv positve nan ma boyfriend is negative.my cd4 coun is 660 is it easy for him to get the viruse if we have sex without condom.but since we meet we use condom

  9. Roy Trevelion

    Hi Isaac,
    AS Lisa says here on this question, you cannot transmit HIV if you are taking treatment and undetectable. You can find out more from the PARTNER study.

  10. Isaac

    I’m in New love with someone who’s HIV infected. She told me that she is infected after unprotected sex with her and she told me that she is using pills for HIV. My question is will I get it or not. I tested negative before meeting her.


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