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消毒饮水来防止肠道传染病的介水传播,已获得无可置疑的显著成效。伤寒病的传播途径经水的占40％。十九世纪前,美国伤寒病发病率高达3000/10万以上;自二十世纪初开始推广饮水氯化消毒后,伤寒发病率逐渐下降,1960～1970年十年中介水传播伤寒病只有104例。可见消毒饮水的卫生效益是非常显著的。当然,饮水消毒尚未达到尽善尽美
Disinfection of drinking water to prevent the spread of intestinal infectious diseases mediated by water has yielded undoubtedly significant results. Transmission of typhoid fever by water accounted for 40%. Nineteenth century, the United States the incidence of typhoid fever as high as 3000 / 100,000 or more; since the beginning of the twentieth century to promote drinking water chlorination, the incidence of typhoid gradually decreased from 1960 to 1970, only 10 cases of water-borne typhoid fever . It can be seen that the sanitary benefit of disinfecting drinking water is very significant. Of course, drinking water disinfection has not yet reached perfection