Two sub-Saharan Africa countries, Botswana and Rwanda, have achieved universal access target (treatment coverage of 80% or more of patients in need) at the end of 2009 [4], while countries such as Ethiopia, Zambia, Namibia, and Senegal are moving closer to the same target having covered 50???80% of patients in need of treatment [4].According to recent studies, ART regimens require 70???90% adheren