Abstract
Waterborne diseases are caused by pathogenic microorganisms that most commonly are
transmitted in contaminated different water types (e.g. lakes, rivers, seas, treated domestic
wastewater, aquifers and groundwater). Not only are the developing countries suffering from
the transmutation of waterborne disease but also developed countries in some a sporadic
cases. Water pollution has contributed to high incidences of mortality and morbidity
worldwide. Waterborne disease can be caused by bacterial, viral, parasitic agents, and
chemical agents. Thus, more attention from international organization, governments and
enhancing people awareness to face waterborne diseases are required. In recent years,
investigators have identified a large number of pathogens responsible for outbreads, and
research has focused on their sources, resistance to water disinfection, and removal from
water, It is very important to increase the efficiency of efforts to ensure water quality which
are made for government actions; protect watersheds; strengthen waterborne disease
surveillance; and protect the health of vulnerable populations. Water borne diseases are
contagious and prevention of waterborne diseases requires high standards of hygiene and
sanitation. In order to be acquainted with the ways to avoid water borne diseases, it is
essential to first know how infection takes place. Thus, it is necessary to focus on the
preventionof waterborne diseases by conditioning the water and making it fit for human
consumption.