CD4 and Vogt-Koyanagi-Harada disease: In the hierarchical cluster analysis of leukocyte phenotypes (Figure 2), Cluster A (patterned red bar), consisting of basophils, effector memory CD4+ T cells, Th17-like, and plasmablasts, showed high intensity in the acute phase of VKH disease patients (brilliant green) compared to relative controls (brilliant red), and the intensity of the cluster in the remission phase (black to dark red) was also relatively high compared to relative controls.