Principles of Sanitary Science And the Public Health With Special Reference to
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There is every reason to believe that in the case of wells, springs, and other sources of water supply, the same law holds. Mere pollution with uninfected sew- age, or with thoroughly purified sewage, may do little or no harm. Something more than ordinary pollution is re- quired; there must be infection in the sewage and the presence of active, virulent and specific germs of disease. The same thing is illustrated by the case next to be con- sidered.
§11. — The Case of Newburyport, Mass, In Janu...ary, 1893, an outbreak of typhoid fever in the city of Newburyport, at the mouth of the Merrimac, furnished a striking and instructive demonstration of that difference which exists, and is too often forgotten, between general "pollution" and specific "infection. " The city of Newburyport had for many years derived its drinking water from large springs of an unobjectionable character, and typhoid fever had been of rare occurrence when suddenly, in January, 1893, an unusual number of cases of typhoid fever broke out almost simultaneously, and an investigation of them was made by the author.
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You can find similar books in the "Read Also" column, or choose other free books by W T William Thompson Sedgwick to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
There is every reason to believe that in the case of wells, springs, and other sources of water supply, the same law holds. Mere pollution with uninfected sew- age, or with thoroughly purified sewage, may do little or no harm. Something more than ordinary pollution is re- quired; there must be infection in the sewage and the presence of active, virulent and specific germs of disease. The same thing is illustrated by the case next to be con- sidered.
§11. — The Case of Newburyport, Mass, In Janu...ary, 1893, an outbreak of typhoid fever in the city of Newburyport, at the mouth of the Merrimac, furnished a striking and instructive demonstration of that difference which exists, and is too often forgotten, between general "pollution" and specific "infection. " The city of Newburyport had for many years derived its drinking water from large springs of an unobjectionable character, and typhoid fever had been of rare occurrence when suddenly, in January, 1893, an unusual number of cases of typhoid fever broke out almost simultaneously, and an investigation of them was made by the author.
What to read after Principles of Sanitary Science And the Public Health With Special Reference to?
You can find similar books in the "Read Also" column, or choose other free books by W T William Thompson Sedgwick to read onlineMoreLess
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