GLOBAL: Consequential Scientist: How Alison Rodger’s research proved that Undetectable Equals Untransmittable (U=U).

Alison Rodger, MD, is one of the most consequential HIV scientists in the history of the disease. Her research, much of it done at University College London, demonstrated definitively that a person with an undetectable viral load does not transmit HIV via sex.

Anecdotal evidence from serodiscordant couples had already suggested that people with undetectable viral loads don’t transmit HIV. Rodger and her colleagues proved that Undetectable Equals Untransmittable (U=U) via rigorous adherence to the scientific method. By proving that U=U, she helped to usher in a new era in the battle against the virus.

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