Positive rate of Widal reaction was low.
肥达反应阳性率低。
Objective: To reevaluate the diagnostic value of Widal test and some problems concerned in children with typhoid fever.
目的：评价肥达反应在儿童伤寒的诊断价值以及应注意的问题。
The Schuffner test was inconclusive but the Widal reaction supported typhoid fever and he was admitted to Ruchill Hospital on 13 December.
薛夫讷氏试验没有确定结果，而肥达氏反应支持为伤寒。患者于12月13日住进鲁奇尔医院。
Methods: We examined and observed 52 patients with typhoid and 20 normal controls by bacterial culture, Widal reaction, and enzyme-linked immunoassay for detection of typhoid bacilli H antigen.
方法该文采用细菌培养、肥达反应、伤寒杆菌H抗原酶联免疫检测检查52例伤寒患者，20例正常人，进行对照观察。
The semiquantitative slide agglutination and single-tube Widal tests had positive predictive values (PPVs) of 25.0% (95% confidence interval, CI: 0.6–80.6) and 20.0% (95% CI: 2.5–55.6), respectively.
半定量玻片凝集试验和单管维达尔试验的阳性预测值（PPVs）分别为25.0%（95%可信区间：0.6-80.6）和20.0%（95%可信区间：2.5-55.6）。
The semiquantitative slide agglutination and single-tube Widal tests had positive predictive values (PPVs) of 25.0% (95% confidence interval, CI: 0.6–80.6) and 20.0% (95% CI: 2.5–55.6), respectively.
半定量玻片凝集试验和单管维达尔试验的阳性预测值（PPVs）分别为25.0%（95%可信区间：0.6-80.6）和20.0%（95%可信区间：2.5-55.6）。
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