大肠埃希菌与枸橼酸杆菌属、沙门菌属等,在O抗原上存在很多交叉反应[1]。但两种细菌恰好与沙门菌菌体抗原凝集却很少有人报道。在今年从业人员健康体检大便培养中检出一株大肠埃希菌和一株弗劳地枸橼酸杆菌,它们分别与沙门菌O15、O3,19抗原诊断血清发生凝集。现将试验结果报道如下。 Escherichia coli and Citrobacter, Salmonella, etc., there are many cross-reactions on the O antigen [1]. However, it is rarely reported that both bacteria agglutinate with Salmonella bacterial antigen. In this year practitioners health examination stool culture detected a strain of Escherichia coli and a Freund Citrobacter, respectively, with Salmonella O15, O3, 19 antigen serum agglutination. The test results are reported below.