A few years ago, large randomized controlled research studies of serodiscordant couples started to offer definitive evidence that effective HIV treatment prevents HIV transmission. The HIV community learned that people who maintain “undetectable” viral loads do not transmit HIV to sex partners from studies including HPTN 052 and PARTNER. Years before results from these landmark studies were released, the Swiss Statement offered the perspective that people with completely suppressed viral loads are not sexually infectious.
Now, researchers want to know: Is this message reaching people living with HIV? And, if so, how is it changing how people who maintain undetectable viral loads have sex?