This book is a testament to the early treatment successes and the hidden challenges of antiretroviral therapy (ART) in resource-poor settings. It is also a wake-up call to the risk of treatment failure and the development of widespread ARV resistance unle This book is a testament to the early treatment successes and the hidden challenges of antiretroviral therapy (ART) in resource-poor settings. It is also a wake-up call to the risk of treatment failure and the development of widespread ARV resistance unle