用双歧杆菌发酵奶治疗小儿迁延性及慢性腹泻46例，取得显效。对照组46例，用传统疗法抗生素及止泻剂。双歧杆菌发酵奶，每毫升含双歧杆菌108个左右，给20ml／kg·天。两组均用补液、营养支持作为基础疗法。结果：体温恢复正常、社泻停止、呕吐消失、社胀消失时间，治疗组明显缩短。治疗组患儿每日增加体重数ie．生土巴ig，明显高于对照组的10．2土9．sg。病死率对照组174％，治疗组4．0％。 Bifidobacterium fermented milk in children with persistent and chronic diarrhea in 46 cases achieved remarkable results. Control group, 46 cases, with traditional therapy antibiotics and antidiarrheal agents. Bifidobacterium fermented milk, per ml Bifidobacterium 108 or so, to 20ml / kg day. Both groups were treated with rehydration and nutritional support as basic therapy. Results: body temperature returned to normal, social diarrhea stopped, vomiting disappeared, social swelling disappeared, the treatment group was significantly shortened. Treatment group children with daily weight gain ie. Raw soil Baig, significantly higher than the control group 10.2 soil 9. sg. The case fatality rate was 174% in the control group and 4.0% in the treatment group.