BACKGROUND OF THE STUDY

Malaria is an infectious disease caused by a parasite, plasmodium which infects red blood cells. Historical records suggest that malaria has infected human since the beginning of mankind. The name “mal aria” (Meaning bad air in Italian) was first used in English in 1740 by H. Walpole when describing the disease. The term was shortened to malaria in 20 century. Laveran; in 1880 was the first to identify parasites in human blood. In 1889, Ross discovered that mosquitoes transmit malaria.

The disease continues to be a cause of great suffering in tropical and sub-tropical regions of the world (Brabin, 1989). Currently, it is endemic in about 100 countries affecting 4% of world’s population. Malaria has been eliminated or effectively suppressed in several parts of the world in past decade but is now undergoing resurgence (Gilles, 1987). It is returning to areas from which it had been eradicated as well as spreading into new areas such as central Asia and Eastern Europe. Despite global economic development people are dying from malaria now than 30 years ago.

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