Sample Term Paper
Malaria is preventable and curable. The disease first became a focus of research in the 19th century when French and British forces extended their colonies into endemic areas, and the morbidity caused by the disease was a limiting factor in their efforts to take advantage of natural resources (Tognotti). Preventative measures fall into three categories. The first one is to eliminate the vectors involved in the spread of the disease.
There exist several methods to eliminate the mosquitoes responsible for the spread of malaria. Perhaps the most well-known is the use of DDT. The use of this widely effective chemical wiped out malaria from southernUSA in 1951. The use of DDT has been restricted since the 1960s over environmental concerns, and coupled with the fact that mosquitoes in several parts of the world have developed a resistance to DDT, new pesticides may have to be researched. However, since the use of DDT has been limited or banned for agricultural use for some time, the resistance may have dulled down and DDT may now be more effective as a method of disease-control. Before the introduction of DDT, oil was often sprayed onto potential breeding grounds, poisoning the mosquito larvae. This method might be employed feasibly in poorer countries likeAfrica where several resistant species of mosquitoes are found hence most pesticides are rendered impotent here.
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