流感嗜血杆菌（Haemophilusinfluenzae，Hi）是引起儿童脑膜炎及呼吸道感染的常见病因之一[1]。有报道在成人社区下呼吸道感染中．Hi居细菌性病原的首位，而国内有关这方面的报道很少。为此，我们对我院呼吸科门诊下呼吸道感染患者痰菌中有关Hi的情况进行了调查。1材料与方法1 Haemophilus influenzae (Hi) is one of the common causes of meningitis and respiratory tract infection in children [1]. There are reports of lower respiratory tract infections in adult communities. Hi ranks first in bacterial pathogens, while domestic reports on this area are few. To this end, we investigated the case of Hi in sputum from patients with respiratory tract infections in our department’s respiratory clinic. 1 Materials and methods 1