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Often when there is a local water main break, a town will post an advisory to...

Often when there is a local water main break, a town will post an advisory to boil water before ingesting it. Identify the biological basis behind the effectiveness of this procedure in minimizing illness

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Boiling the water kills or inactivates viruses, bacteria, protozoa and other pathogens by using heat to damage the structural components as well as causing disruption of essential life processes such as denaturation of proteins. Common pathogens found in drinking water are protozoa such as Giardia, Cryptosporidium; bacteria such as E.coli, Salmonella, Vibrio and Shigella; Viruses such as Hepatitis A, Hepatitis E and Adenovirus.

Boiling is not sterilization but it is more close to pasteurization. Sterilization kills all organisms whereas pasteurization kills those organisms that cause harm to humans.

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