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The case for water-borne infectious hepatitis.

The case for water-borne infectious hepatitis. ine the avenues whereby IH is spread, and to note any methods of ntrol which might be applied. The principal methods2 of spread are person-to-person through a fecal-oral route. Food, milk, and water have been incriminated as vehicles of transmission. Food outbreaks have not been frequent. Transmission by insects is nsidered possible insofar as mechanical infection is ncerned, but is not thought to be of major significance.2 The air-borne route has not been nsidered a likely method of spread. It is the purpose of this paper to examine some of the evidence for waterborne and to suggest methods of ntrol. IH Virus The virus or viruses responsible for have so far eluded isolation and examination by the electron microspe. It has, however, been thought3 that they belong to the nanivirus group, members of which have diameters of but a few millimicrons or of the order of 7/25,000,000 of an inch. There is no information about possible electrical charge of IH virus particles. These observations are notable, for parti2093 Figure 1- rates vs. finished water pH for 16 United States cities using surface water supplies, 1961 cles as minute as IH viruses appear to be would have no difficulty http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Public Health American Public Health Association

The case for water-borne infectious hepatitis.

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Publisher
American Public Health Association
Copyright
Copyright © by the American Public Health Association
ISSN
0090-0036
eISSN
1541-0048
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Abstract

ine the avenues whereby IH is spread, and to note any methods of ntrol which might be applied. The principal methods2 of spread are person-to-person through a fecal-oral route. Food, milk, and water have been incriminated as vehicles of transmission. Food outbreaks have not been frequent. Transmission by insects is nsidered possible insofar as mechanical infection is ncerned, but is not thought to be of major significance.2 The air-borne route has not been nsidered a likely method of spread. It is the purpose of this paper to examine some of the evidence for waterborne and to suggest methods of ntrol. IH Virus The virus or viruses responsible for have so far eluded isolation and examination by the electron microspe. It has, however, been thought3 that they belong to the nanivirus group, members of which have diameters of but a few millimicrons or of the order of 7/25,000,000 of an inch. There is no information about possible electrical charge of IH virus particles. These observations are notable, for parti2093 Figure 1- rates vs. finished water pH for 16 United States cities using surface water supplies, 1961 cles as minute as IH viruses appear to be would have no difficulty

Journal

American Journal of Public Health – American Public Health Association

Published: Dec 1, 1966

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