CD4 tiers in Pixley-ka-Seme.

ITSDM CD4 service for the Pixley-ka-Seme district includes Tiers 1–3 (proposed new tiers, which can be implemented in varying combinations to ensure ‘full service coverage’), and Tier-4 and Tier-5 (comprising existing service). Further breakdown of tier costs is included in the Results and Fig. 2. * (Existing Pixley workload split between two existing higher tier laboratories, geographically closest to referring health-clinic site). §Total −$58 354. Abbreviations: BD, Becton Dickinson Biosciences. BC, Beckman Coulter International. CD4 tiers in Pixley-ka-Seme.