Guava EasyCD4% Assay
for monitoring treatment of pediatric patients with HIV/AIDS

Absolute CD4 T-cell counts in children vary with age and development, so additional parameters are needed to monitor progression of pediatric HIV infection. An accepted indicator for this patient population is CD4 percentage (CD4%), which is the absolute CD4 T-cell count expressed as a percentage of total lymphocytes.

The Guava EasyCD4®% Assay provides both absolute CD4 T-cell counts and CD4% values with the same simplicity and ease-of-use as the Guava EasyCD4 Assay. The EasyCD4% Assay yields comparable results to clinical lab predicate methods for both CD4% and CD4 counts.

Key features & benefits

Feature	Benefits
Self-aligning, user-replaceable flow cell (no sheath fluid)	Enables direct, absolute cell counts without reference beads Reduces biohazardous waste by 100-fold Minimizes service calls
Fixed optical and fluidics systems	Reduces maintenance requirements Eliminates user-performed hardware (i.e., laser) adjustments
Microcentrifuge format	Requires less reagent and sample Dual sample loader enables running one sample while prepping the next
Small footprint	Less than 1.5 ft sq (36 cm sq) Fits into the tightest lab spaces
Easy to learn, run, and maintain	Be up and running in less than a day

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