Confocal images of infected chiceken blood cells stained with cell lineage-specific antibodies.

<p>Green, images stained with specific antibodies (as labeled); DIC, differential interference contrast images; Hoechst, images of Hoechst dye staining for nuclei (DNA); Merged, merged images of anti-RBC, DIC, and Hoechst. (A-D) Cells stained with Anti-monocyte antibody that stains mostly monocytes and macrophages. (E-H) Cells stained with anti-Bu-1b (anti-chicken Bu-1b) that stains most bursal cells, thymocytes, and peripheral monocytes and macrophages. (I-P) Cells stained with anti-CD4 antibody (mouse anti-chicken CD4) that stains thymocytes, spleen cells, and peripheral lymphocytes. Cells infected with <i>L</i>. <i>sabrazesi</i> gametocytes (red arrowheads) are not stained by any of the three antibodies.