<prompt> Answer this question truthfullyWhat does the term typhus scrub mean?  <response>: <reason> Scrub typhus or Bush typhus is a form of typhus caused by the intracellular parasite Orientia tsutsugamushi, a Gram-negative α-proteobacterium of family Rickettsiaceae first isolated and identified in 1930 in Japan. Scrub typhus is transmitted by some species of trombiculid mites chiggers , particularly Leptotrombidium deliense, which are found in areas of heavy scrub vegetation. The bite of this mite leaves a characteristic black eschar that is useful to the doctor for making the diagnosis. 