论文部分内容阅读
目的：比较脂多糖－被动血凝试验（ＬＰＳ－ＰＨＡ）、肥达反应和细菌培养诊断伤寒的临床价值。方法：用上述三种方法同时对１０２例伤寒患者和２５０例非伤寒发热患者进行检测。结果：①伤寒患者中ＬＰＳ－ＰＨＡ阳性率为９２．２％，肥达反应阳性率为８８．２％，差异无显著性（Ｐ＞０．０５），但均高于细菌培养的阳性率（２４．５％，Ｐ＜０．０１）。②病程第１周三种方法的阳性率分别为８０％（２４／３０）、８３％（２５／３０）和２７％（８／３０）。③肥达反应的伤寒与副伤寒鞭毛抗体交叉阳性率达３７．３％。结论：细菌培养的灵敏度太低，肥达反应的特异性较差，ＬＰＳ－ＰＨＡ早期快速诊断伤寒可靠性较好。
Objective: To compare the clinical value of lipopolysaccharide-passive hemagglutination test (LPS-PHA), Widal reaction and bacterial culture in the diagnosis of typhoid fever. Methods: 102 cases of typhoid fever and 250 cases of non-typhoid fever were tested simultaneously by the above three methods. Results (1) The positive rate of LPS-PHA in typhoid fever was 92.2%, the positive rate of Wadda reaction was 88.2%, but the difference was not significant (P> 0.05), but higher than the positive rate of bacterial culture 24.5%, P <0.01). ② The first week of disease duration of the three methods were 80% (24/30), 83% (25/30) and 27% (8/30) respectively. ③ fat-reactive typhoid and paratyphoid flagellum antibody cross-positive rate of 37.3%. Conclusion: The sensitivity of bacterial culture is too low, and the specificity of Widal reaction is poor. The early diagnosis of typhoid fever with LPS-PHA is reliable.