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Filariasis, Malaria, Dengue Fever and Lyme Disease. Insects-the most diverse group
of animals on Earth, are the major group from arthropods class. ...
Submitted by nucleuscrux on April 8, 2008
Category: Science
Words: 3279 | Pages: 14
Views: 88
Popularity Rank: 94,785
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Insects-the most diverse group of animals on Earth, are the major group from arthropods class. Insects could be found in almost everywhere, in any conditions, and environments, which why we would classify insects as the most successful, and diverse organisms to dominate the earth’s population. However, these magnificent, simple yet sophisticated organisms are capable to produce massive casualties. The manner of how these diseases are introduced to human through insects will further be discussed in this paper. This paper will attempt a further analysis on the history, the distribution of the diseases worldwide, and the further impact noted caused by the diseases.
Vector could be defined as an organism that does not involve in causing disease itself, but responsible in conveying pathogens from each host to another which in this case; the insects. These diseases can be transmitted to human through various ways, and one of them: mosquito bites. Therefore, in this paper, I will further discuss on four major vector-borne diseases; Filariasis, Malaria, Dengue fever, and Lyme disease.
I will begin my discussion on Filariasis. Filariasis which also known as Lymphatic Filariasis, is spread from an infected human (the carrier of the disease), to other healthy human by mosquitoes. This disease caused by a type of parasitic adult worms called microfilaria (Wuchereria bancrofti, Brugia malayi) that lives and reproduce in human’s lymphatic vessels. The female worms will release large numbers of very small worm larvae, which circulate and infected human’s bloodstream. Thus, when a human is bitten by a mosquito, the mosquito would ingest the larvae, and it would continue developing in the mosquito into an infective stage, which later will be transmitted to other human via same methods; mosquito bites. And again, once a human is bitten, the larvae will passed through the human skin and travel all the way to the lymphatic vessels and it will...
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