An acute infectious disease that is caused by a microorganism(Rickettsia rickettsii) transmitted by ticks, is characterized by muscular pains, high fever, and skin eruptions, and is endemic throughout North America. 洛矶山斑疹热：一种由扁虱传播的微生物（立克次氏体） 所引起的急性传染病，特征为肌肉疼痛、发高烧和出现皮疹，在北美洲地区常见