The disease caused by contaminated water is known as water-related disease. It may be classified as follows:
- Waterborne disease
Water-borne diseases are caused by pathogens carried by water containing sewage contamination. For example; Cholera, dysentery, typhoid, paratyphoid, diarrheas, and other diseases. Improvement of quality of drinking water may check the water-borne disease.
- Water washed disease
The disease caused by unhealthy personal hygiene is called water-washed disease. For example; scabies, trachoma, skin sepsis, fungal infection, etc. Healthy personal hygiene alone with an increased quantity of clean water prevents the disease.
- Water-based disease
The disease is transmitted by aquatic animals and pathogens spending their life in water-based diseases. For example; water snail, guinea worm, lingo flukes, etc.
- Water victor or insect dependent disease
Insects living within the surrounding water sources may carry pathogens and cause disease such insects are called water victor disease. The water-related disease transferred from water by insects is called insect-dependent disease.