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目的：验证伤寒脂多糖－被动血凝（ＬＰＳ－ＰＨＡ）诊断试剂的临床应用价值。方法：对２１０例疑似伤寒、副伤寒病人血清用ＬＰＳ－ＰＨＡ诊断试剂作快速诊断检测，并与血培养和伤寒血清凝集反应（肥达反应）作比较。结果：９１例血培养伤寒或副伤寒杆菌阳性者伤寒ＬＰＳ－ＰＨＡ阳性７７例（８４．６％），肥达反应阳性６６例（７２．５％），血培养阳性者的ＬＰＳ－ＰＨＡ与肥达反应阳性率比较有统计学显著差异（Ｐ＜０．０５），特别是早期病人（病程在７天内）的阳性率（７５．０％）显著高于肥达反应（３３．３％）。结论：ＬＰＳ－ＰＨＡ诊断试剂对诊断伤寒、副伤寒优于肥达反应。
Objective: To verify the clinical value of LPS-PHA diagnostic reagent. Methods: 210 cases of suspected typhoid and paratyphoid patients serum LPS-PHA diagnostic reagent for rapid diagnosis and detection, and blood culture and typhoid serum agglutination (Waddy response) for comparison. Results: 91 cases of typhoid fever or paratyphoid fever-positive typhoid fever in 91 cases were positive in 77 cases (84.6%), and 66 cases (72.5%) were positive in fat-fed reaction. LPS-PHA and (P <0.05). The positive rate (75.0%) in early stage patients (within 7 days duration) was significantly higher than that of Widal response (33.3%). Conclusion: LPS-PHA diagnostic reagent is superior to Widal reaction in the diagnosis of typhoid and paratyphoid.