副流感嗜血杆菌生物型在呼吸道感染中分布的初步研究

The preliminary analysis of the biotypes of Haemophilus parainfluenzae in the respiratory infections

目的了解副流感嗜血杆菌的各种生物型在呼吸道各种疾病中的分布情况。方法自临床各呼吸道疾病病人选取分离菌株 ,并经 API NH进行菌种鉴定的 194株副流感嗜血杆菌 ,按其对吲哚、尿素、鸟氨酸的利用情况进行分型。计算各种生物型在各种疾病中的百分率。结果 194株副流感嗜血杆菌中 ,副流感 、 、 、 、 、 、 、型的分离率分别为 39.7%、30 .9%、13.4%、4.6 %、7.2 %、3.6 %、0 .5 %。肺炎患者以副流感 型为主 5 2 % (38/ 73) ,其次为副流感 型 31.5 % (2 3/ 73) ;而上感患者、支气管炎患者、急性气管炎患者、其他疾病均以副流感 I型为主。结论不同的疾病副流感嗜血杆菌的生物型分布各不相同。引起呼吸道感染的主要为副流感嗜血杆菌 、 型。

Objective To investigate the biotypes of Haemophilus parainfluenzae in the respiratory infections. Methods 194 isolates were taken from patients with respiratory infections and identified by API NH. These strains were classified according to the indole. urea and ornithine test. The percentage of biotypes in the various respiratory infections were calculated. Results the rates of biotypes in 194 isolates were as follows: Ⅰ 39 7%,Ⅱ 30 9%,Ⅲ 13 4%,Ⅳ 4 6%,Ⅵ 7 2%,Ⅶ 3 6%,Ⅷ 0 5%. The command biotype was Ⅱ(52%) and Ⅰ second(31 5%) in the pneumonia. However, in the infections of the upper respiratory tract, bronchitis, acute tracheitis and other respiratory illness, the major biotype was Ⅰ. Conclusion the distribution of Haemophilus parainfluenzae was different in different respiratory infections. Haemophilus parainfluenzae Ⅰ and Ⅱ were the main cause of respiratory infections.