Waterborne diseases are diseases those that are commonly spread through contaminated fresh water. The water may be contaminated with human or animal feces containing pathogenic microorganisms. One gram of feces can contain; 10,000,000 viruses, 1,000,000 bacteria, 1000 parasite cysts and 100 parasite eggs. Such water when used for bathing, washing, drinking, preparing food, or the consumption of food causes infection. Water related diseases such as salmonellosis, cholera, malaria, etc, cause about 1.8 million humans to die every year.
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