Characterization of heavily infected and multinucleated macrophages by immunohistochemistry.

<p>Sections of the spleen of <i>L</i>. <i>donovani</i>-infected mice at 24 weeks post-infection were stained with anti-F4/80 (A), MOMA-2 (B) or anti-CD11b (C) antibody, followed by counterstain with hematoxylin. Cells in the red pulp with positive signal are shown. Parasites are visualized as blue dots. Scale bars, 20 μm.