Question
Discuss the water associated hazards arising from the ingestion of biological agents.
Answer :
Word Count : 400
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From a public health point of view, the reliable supply of safe drinking-water is vital for daily life. Unfortunately, the same water that sustains life can also be the bearer of dangerous contaminants in the form of bacteria, viruses and protozoans. These include bacteria such as toxigenic Escherichia coli and Campylobacter, viruses like Norovirusand Hepatitis E, and protozoans like Giardia and Cryptosporidium. The risk of infection and disease and the public health burden is determined by the severity of illnesses that are caused by the pathogens, the extent of the exposure, their infectivity, and the physical condi-tion and susceptibility of
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