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If you are undetectable you cannot pass on HIV


It’s true – you can’t pass on HIV if you are undetectable! If you take your treatment properly, it can reduce HIV to such low levels that the virus can no longer be detected in normal blood tests and can’t be passed on via sex. This is also known as undetectable = untransmittable (U=U).  

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  • Last updated: 11 August 2022
  • Last full review: 01 March 2022
  • Next full review: 01 March 2025
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