Once the amount of HIV in body fluids is reduced to an ‘undetectable’ level, HIV cannot be passed on during sex. This is what is meant by the slogan 'Undetectable equals Untransmittable' ('U=U').

HIV cannot be sexually transmitted by an HIV-positive partner with a fully suppressed viral load. The risk of getting HIV through oral sex is low, but not non-existent, when a person with HIV does not ...

The decrease in CD4 cells during HIV infection seems to be driven by immune activation, which does not always correlate with viral load. Experienced clinicians are all too familiar with the ...

reported that patients treated with regimens containing ibalizumab achieved undetectable HIV viral load levels at similar rates as those receiving non-ibalizumab-containing regimens, despite ...