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Q(Query)热被发现迄今50余年,其病原体与其它立克次体有很大差异,因此有独特的致病特点。(1)它非常抗干燥,所以不需传播媒介;(2)人类感染后很少出现皮疹;(3)它不刺激机体产生变形杆菌(OX株)抗体,外斐氏反应无助诊断。现将国内外对本病研究近况介绍如下。 一、流行病学 世界各国至今仍有本病流行。1980年美国丹佛市科罗拉多大学医学院的教职员工在1～8月内连续发生Q热137例(56例是隐性感染),其中直接与羊接触41例,其它人是住在运羊车走行的沿线或经其它方式与羊接触,当把羊移走1个月后,流行才终止。1981～1984年西班牙Basque地区连续发生Q
Q (Query) fever has been found for more than 50 years, its pathogens and other rickettsia are very different, so has a unique pathogenic characteristics. (1) it is very resistant to drying and therefore does not require a vector of transmission; (2) rash rarely occurs after human infection; (3) it does not stimulate the body to produce antibodies against Proteus (OX strain); Present domestic and foreign research on the status of the disease are as follows. First, epidemiology All countries in the world still have the disease epidemic. In 1980, the faculty members of the University of Colorado School of Medicine in Denver, USA, consecutively experienced 137 cases of Q fever (56 cases were latent infection) in January to August. Among them, 41 cases were directly exposed to the sheep while others were living in the sheep car Or contact with the sheep by other means, the epidemic stopped when the sheep were removed for one month. From 1981 to 1984, Q in the area of Basque, Spain