Published by the World Health organization in 2016, this guide focuses on the use of antiretroviral drugs for treating and preventing HIV infection. It is in this guideline that the WHO recommends, for the first time, that all people living with HIV be provided with antiretroviral therapy (ART) i.e all populations and age groups are now eligible for treatment, including pregnant women and children. This guideline also makes service delivery recommendations on how to expand coverage of HIV treatment. Additional recommendations in the guidelines aim to help programs deliver services closer to people’s homes; expedite reporting of test results; integrate HIV treatment more closely with antenatal, tuberculosis, drug dependence and other services; and use a wider range of health workers to administer treatment and follow-up care.