CD4 and tuberculosis: The scale up of provider initiated counseling and testing by the national TB program in 2005 [17], the implementation of the national HIV counseling and testing policy guidelines in 2010 [18] and the change in national ART guidelines from an ART eligibility of CD4 count 200 cells/μL to 350 cells/μL in early 2010 [19] all resulted in increased numbers of individuals accessing ART, requiring further decentralisation.