A double-blind, multicenter, placebo-controlled study in 166 patients with recurrent UTI found that prophylactic immunotherapy reduced the rate of recurrence and the prealence of proteinuria.

• 一项在166例复发性UTI患者中所进行的双盲、多中心、安慰剂对照的研究发现：预防性免疫治疗可以减少UTI复发率和蛋白尿的发生率。