Conclusion As one of the causes of Rickettsia pneumonia, Rickettsia tsutsugamushi should be paid attention, pneumonia with unknown casuses should consider excluding tsutsugamushi.

• 结论恙虫病东方体作为立克次体肺炎的病因之一应得到重视，不明原因肺炎要考虑除外恙虫病。