Detection of <i>O. tsutsugamushi</i> at the injection site (Panels A and B) and draining lymph node (Panel C) at 7 days post inoculation.

Abstract

<p>In panel “A” <i>O. tsutsugamushi</i> in a mouse ear is demonstrated using peroxidase DAB reaction as brown colored dots (counterstain hematoxylin, original magnification x400). The immunofluorescence staining of <i>O. tsutsugamushi</i> is shown in panels “B” (mouse ear) and “C” (draining lymph node): <i>O. tsutsugamushi</i> with FITC (green) and DAPI nuclear counterstain in blue (original magnification x600).</p