Malaria Paper

Malaria Paper - That Dam Malaria Heart disease Cancer...

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That Dam Malaria
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Heart disease. Cancer. HIV/AIDS. These are the causes of death the general population is aware of. However, malaria is one more disease people should know. According to MSN Encarta, malaria was the cause for 1,222,000 deaths worldwide in 2004 (“Leading Causes of Mortality in the World” n.p.) Currently, there is no medical cure to bring this outrageous number down. The malaria which kills most humans comes from the parasite Plasmodium faliciparum. Plasmodium is a pathogen of the Protista kingdom. It is a heterotroph, so it must find and digest its food for energy. Plasmodium lives a complex life cycle being part of the Sporozoa phylum. This means they go through sexual and asexual reproduction. This all depends on where it is – the mosquito or the host. The malaria disease starts out sexually with the mosquito sucking in gametes from the blood of an infected host. These gametes then fuse into a zygote and attach to the stomach wall of the mosquito where it grows to produce sporozoites which concentrate in the salivary glands. Now the disease is able to transfer to a host through a feeding for blood by releasing these sporozoites into the vertebrate. The sporozoites then infect liver cells and become merozoites which attack red blood cells and are now asexual. Once this occurs, the host will not be able to transport enough oxygen to its body for all the cells to perform respiration. Then the red blood cells change over to gametes in the blood so the disease can start over with a new mosquito bite. Female mosquitoes are the vector of malaria. It is only the females that feed on human blood so they are the one who transmit the disease. The mosquito is part of the order diptera which goes through complete metamorphosis. The first stage, the egg, takes place in standing water. Because of this, wetlands, or any place near water, are the
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desired habitat for mosquitoes. Like any organism, mosquitoes are mostly concerned
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This note was uploaded on 02/19/2009 for the course ENG ENG 208 taught by Professor Unknown during the Spring '09 term at Washtenaw.

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Malaria Paper - That Dam Malaria Heart disease Cancer...

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