Water Borne Diseases,Typhoid Fever,Paratyphoid Fever,Cholera,Bacillary Dysentery,Amoebic Dysentery,Poliomyelitis,Viral Hepatitis,Jaundice

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Drinking Water and Sewage Microbiology Drinking Water Microbiology Water Born Diseases Potable or non Polluted Water Water Purification Determination of Water Potability Degree of Faecal Pollution of Water Coliform Test Technique Multiple Tube Fermentation Test Membrane Filter Technique Coliforms and Their Differentiation

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Water-borne Diseases
The diseases acquired directly from contaminated water, i.e., the water-borne diseases include not only diseases of the alimentary tract (gastrointestinal diseases) but other types as well. Following are some important water-borne diseases:

Typhoid fever	Salmonella typhi
Paratyphoid fever	S. Paratyphosa, S. shottmuelleri, S. typhimurium
Cholera	Vibrio Comma
Bacillary dysentery	Shigella sp.
Amoebic Dysentery	Entamoeba histolytica
Poliomyelitis	Polio virus
Viral (infectious) hepatitis	Hepatitis viruses
Vasilyev-Weil disease or infectious jaundice	Leptospira interrogans

All this points to the necessity for employing water-treatment-technique which can provide safe drinking water and the treatment of sewage prior to its disposal. We will take up water-treatment-techniques (water purification and determination of water potability) as the point at issue. But our discussion on sewage treatment-techniques would find place in the of this chapter i.e. sewage microbiology.

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