. Preventive medicine and hygiene. t that infection tookplace at this time. Professor Smith found that 96 per cent, of the casesthat occurred were in the districts supplied with water from the DawsonLake. (Whipple.) This outbreak again illustrates the resistance of the typhoid infectionto freezing, and the danger from a surface supply that for years may runsatisfactorily. Even the storage reservoir failed in this case, as in tliePlymouth ease, to check the quick transfer of the infection. Had the 940 WATER AXD ITS EELATIOX TO DISEASE Dawson supply beeu filtered or otherwise jDurified the epide
. Preventive medicine and hygiene. t that infection tookplace at this time. Professor Smith found that 96 per cent, of the casesthat occurred were in the districts supplied with water from the DawsonLake. (Whipple.) This outbreak again illustrates the resistance of the typhoid infectionto freezing, and the danger from a surface supply that for years may runsatisfactorily. Even the storage reservoir failed in this case, as in tliePlymouth ease, to check the quick transfer of the infection. Had the 940 WATER AXD ITS EELATIOX TO DISEASE Dawson supply beeu filtered or otherwise jDurified the epidemic coiildhave been averted. The Typhoid Epidemic at Ashlaxd, Wiscoxsin.—This outbreakis cited from Harrington and is one of peculiar interest, in that, inaddition to serving as an excellent illustration of the danger of usingthe same body of water as a place for the disposal of sewage and as asource of drinking water, it was made the basis of an action at law,which established the liability of water companies and municipalities. Fig. 120. in case of sickness and death caused by the distribution and use ofinfected water. The citys supply is derived from an arm of Lake Superior, Che-quamegon Bay, upon which the city is situated. This bay, which isabout twelve miles long, and of an average width of five, varies fromeight to thirty-six feet in depth. Xorth of the city, and extending out-ward in a northwestwardly direction, is a breakwater constructed for theprotection of the harbor against northerly gales; and between it and thecity the mouth of the water intake is located about a mile from theshore. (See Fig. 120.) The sewage of the city is discharged further tothe west and south. The currents in the bay follow the course indicatedby the arrows in the figure, and carry the sewage toward the breakwaterand over the mouth of the intake. This condition of affairs was brought SPECIFIC DISEASES DUE TO WATER 941 to the attention of the company by the health boards of the city andstate
Size: 1472px × 1697px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwh, bookcentury1900, bookdecade1910, booksubjecthygiene
