流感嗜血杆菌(Haemophilus influenzae,Hi)是一种只侵犯人类的革兰氏阴性短杆菌,专性寄生于人体的鼻咽部,属条件致病菌,当人体抵抗力下降时,可通过毛细血管内皮间隙,进入血循环或局部扩散,引起多器官、多组织感染性疾病。正常人群特别是儿童鼻咽部Hi的携带率较高,全年带菌,以冬 Haemophilus influenzae (Hi) is a gram-negative Brevibacterium that invades only human and is specifically parasitic on the nasopharynx of the human body. It belongs to the opportunistic pathogen. When the human body’s resistance is reduced, it can pass through the capillary Vascular endothelial gap, into the blood circulation or local proliferation, causing multiple organs, multiple tissue infectious diseases. The normal population, especially children Hi nasopharyngeal Hi carrying rate higher throughout the year with bacteria to winter