CD4 and AIDS: Thus, given that ART naive AIDS patients have a significantly high prevalence of peripheral blood abnormalities, this study was carried out at the Yaounde University Teaching Hospital (YUTH) of Cameroon to further determine if this was alike for HIV ART naive patients of all WHO clinical stages and immunological classes (CD4 counts), and also to determine if the clinical or immunological severity of HIV would predispose to peripheral blood cytopenias.