Peripheral blood SRBC rosette negative cells (1 × 10) were stained with anti-CD14 mAb and various chemokine receptor mAbs, and were analyzed by flow cytometry. CD14 cells were gated, and chemokine receptor expression by the CD14 monocytes is shown (solid line). Dotted lines show staining by isotype-matched control mAb. Percentage of positive cells is also shown in the histograms. Staining was from one of nine experiments. FL-1 height, FITC fluorescence; FL-2 height, PE fluorescence.