Q and A


If my viral load is undetectable, can I still transmit HIV?

I have been on ARVs for more than two years now and my viral load is undetectable, with a CD4 count of 900. Can I transmit HIV to my partner should I have unprotected sex?


Thanks for getting in touch.

Great question – and the answer is “no”.

Because your viral load is undetectable you cannot transmit HIV to sexual partners.

This is even if you do not use condoms.

So yes, if you want to stop using condoms, your partner will not be at any risk.

Please see here for more info:


  1. Lisa Thorley

    Hi Sandra,

    You aren’t at risk because your partner is undetectable, please see here for more info: http://i-base.info/u-equals-u/

  2. Sandra

    Hi Sandra here.my partner viral load is undetectable. And i am hiv negative is it safe to have unprotected sex?

  3. Roy Trevelion

    Hi Sipho,

    Starting HIV treatment (ART) can reduced your viral load by 90% in the first few days. It then continues to fall but not as quickly. Soem people will get to undetectable within a month. But most people take up to three months.

    There’s much more info on this similar Q&A here.

    Someone who is HIV positive will always test positive. That’s because the test looks for antibodies that everyone produces when our bodies try to fight a virus or other infection.

  4. Sipho

    Also wanted to ask how long does One get undetected … and when u go test again and is it still going to come out as Positive ?


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