Scrub typhus (tsutsugamushi disease) manifests as an eschar at the site of a chigger bite (top). A diffuse macular rash follows the appearance of the eschar (bottom).
Images courtesy of Yoshiki Taniguchi, MD. From Taniguchi, Y: Eschar, fever, and rash in a 43-year-old man. Dermatology Online Journal 3(2), 1997.