An epidemiological investigation of the case was unable to uncover a history of exposure to dead or diseased birds. 对病例的流行病学调查未发现死禽或病禽接触史。
Methods The investigation of the epidemic area,the isolation of Orientia tsutsugamushi,the study of pervention measures were carried out. 方法疫源地流行病学调查,病原分离鉴定与分子生物学研究,预防措施的制定。