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本文对125例血及/或大便培养阳性的小儿伤寒作了肥达氏反应阴性病例影响因素的分析和探讨。肥达氏反应的诊断标准,若以“O”“H”<1/160作为阴性,则阴性病例有37例,占29.6％;若以<“O”1/80,H 1/160为阴性,则有25例为阴性,占20％。从影响因素如疗程、年龄、营养、免疫力、健康状况、并发症、合并症、药物、化验操作及观察化验结果等方面作了分析,并对8例作了血IgG、IgM、IgA的测定,及对4例采血后同时分别送检二个单位进行化验。另附11例同时期住院的病例,其中
In this paper, 125 cases of blood and / or stool culture positive for pediatric typhoid fever made Wadal response negative case analysis and discussion. If the diagnostic criteria of Widal reaction, “O” “H” <1/160 as negative, the negative cases were 37 cases, accounting for 29.6%; if the “O” 1/80, H 1/160 negative , 25 cases were negative, accounting for 20%. The analysis of influencing factors such as course of treatment, age, nutrition, immunity, health status, complications, comorbidities, drugs, laboratory operation and observation of the test results, and 8 cases of blood IgG, IgM, IgA , And 4 cases of blood samples were also submitted to two separate tests. Attached 11 cases of hospitalized in the same period, of which