Aedes aegypti Index is the ratio expressed as percentage of the number of houses in a well defined limited area in surrounding of which breeding places of Aedes aegypti
Oxidation pond is a cheap method for sewage treatment. It is also called sewage lagoon, redox pond and water stabilisation pond. It consists of a shallow (1-1.5m deep)
Iceberg phenomenon of disease gives a picture of the spectrum of diseases in a community. The visible part of the iceberg denotes the clinically apparent cases of disease
Hygeia – Goddess of Health Click on image for an enlarged view Image by Yair Haklai The Goddess of health, cleanliness and sanitation in Greek mythology She was
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