Scrub Typhus, or tsutsugamushi disease is a febrile illness caused by bacteria of the family rickettsiaceae and named Orientia tsutsugamushi. Scrub typhus is endemic to a geographically distinct region, the so-called tsutsugamushi triangle, which includes Japan, Taiwan, China, and South Korea. It also occurs in nepal, northern Pakistan, Papua new Guinea, and the Australian states of Queensland and northern new South Wales.