The effects of drinking contaminated water lead to thousands of deaths a day.Consumption of water contaminated with infective microorganism is usually accountable for the onset of waterborne disease outbreaks, particularly in developing countries.Such infected water might cause several unwanted diseases like typhoid, cholera, acute diarrheal diseases, etc.Consumption of contaminated water and poor hygiene practices are the leading reason for death among kids worldwide, after respiratory diseases.E.coli, Coliforms, Streptococci, and Enterococci bacteria act as indicator organisms of water contamination.This review discusses and summarizes microbiological approach and methodologies for the evaluation of normal microbial flora and pathogens in the drinking water samples which indicates their potability for consumption.
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