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I did my report on filariasis, which is more commonly known as . is the late phase of filariasis. Filariasis is a tropical mosquito born parasitic disease causing obstruction of the lymph vessels. In some people the presence of the worm causes a tissue reaction t ....

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.... coiled in the lymphatic vessels where they reproduce. The female holds the fertilized eggs in her body. Later the embryos, called microfilariae, are discharged alive. An interesting feature of these worms is the periodic swarming of the microfilariae in the bloodstream. In most species swarming takes place at night. The embryos can be taken up by an insect only when they are in a human's bloodstream. They develope into infective larvae in the insect, which is the intermediate host. These hosts are various genera of mosquitoes, notably A?des, Anopheles, and Culex. Within 10 to 11 days after ingestion by a human skin they migrate to the lymphayic ....