Thus, if someone is undetectable but then their treatment fails, they would become detectable and able to transmit the virus. But they could still infect someone else before they discovered their treatment failed.
Can you please put this into simpler terms? I am pretty confused. Because HIV transmission is not a theoretical and is not a myth. My understanding is, OP meant to say "transmission of HIV via known risky activities."
--EDIT--
Thank you for those clarifying. Often the unfamiliar technical terms can throw me off.
It's possible, with treatment, for people with HIV to have a viral load labelled undetectable.
To date, from an article I read, there have been no recorded transmissions from people with an undetectable viral load.
How many people taking retrovirals have undetectable levels of HIV?
Are those people using condoms?
They are saying that there are no recorded instances of someone that is taking antiretroviral drugs and has an undetectable viral load actually transmitting the virus.
Until a few years ago, C-section was recommended, but the current wisdom is that vaginal birth poses no greater risk for the baby.
Same with breastfeeding. Until a few years doctors would call CPS if a HIV+ woman admitted to breastfeeding her child. Now, our doctors encouraged my HIV+ wife to breastfeed.
OTOH she was the second (or third?) HIV+ woman in our city who dared to.
Worked out for us. Both kids are HIV-, as am I.