This World Health Organization policy brief explains the rationale behind the thresholds of HIV viral load suppression and provides additional information regarding implementation considerations. The ultimate goal of antiretroviral therapy for people living with HIV is attainment of undetectable viremia. This is for their own health and to prevent onward transmission to their sexual partner(s) and children. There are however, three key categories of viral load suppression: unsuppressed, suppressed, and undetectable. People living with HIV who have an undetectable viral load have zero risk of transmitting HIV through sex as long as they continue to take their antiretroviral therapy as prescribed. Please follow the link here and download the article for your further reading.