1984年6月,穆棱煤矿某居民区自来水的不冻栓式阀门井,因年久失修,井栓漏水,污水经排气孔进入管道致水源被污染,引起一次细菌性腹泻暴发,14～29日共发病825例,发病率为9.02％,男女之比为1.31:1,7～12岁发病率为20.7％,15～17岁组为12.4％,7岁以下18岁以上发病较少。 In June 1984, the non-freezing valve type valve well in tap water of a residential area in Muling Mine was contaminated with water due to the polluted water entering the pipeline through the exhaust hole due to the disrepair and well plugging, resulting in a bacterial diarrhea outbreak. On the 29th, a total of 825 cases were reported with a prevalence rate of 9.02%. The ratio of male to female was 1.31. The incidence rate of male to female was 20.7% at 1 ~ 12 years old and 12.4% at 15 ~ 17 years old.