top of the food chain. DDT also slowed down the growth and photosynthesis in green algae‚ however in aquatic vertebrates it can cause nervous system disorders or reproductive disabilities which could potentially mean the species could die out. Mosquitoes were sprayed with DDT in order to kill them off so it would cause a decrease the chances of a species getting any of the harmful diseases that they can carry. When a mosquito were sprayed with DDT it opens sodium ion channels in the neuron meaning
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DENGUE FEVER / DENGUE HEMORRHAGIC FEVER Aedes What is Dengue? • a mosquito-borne viral disease • transmitted by the bite of an infected female Aedes mosquito • caused by 4 serotypes of Dengue virus: Den-1‚ Den-2‚ Den-3 and Den-4 • Dengue Virus common during rainy season. Aedes mosquito Where is Dengue found? • • • reported from over 100 countries worldwide approx. 2.5M people at risk the most important mosquito-borne viral disease in the world
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in areas that are favourable for mosquito breeding‚ e.g. where household water storage is common and where solid waste disposal services are inadequate. Dengue viruses are transmitted to humans through the bites of infective female Aedes mosquitoes. Mosquitoes generally acquire the virus while feeding on the blood of an infected person. After virus incubation for eight to 10 days‚ an infected mosquito is capable‚ during probing and blood feeding‚ of transmitting the virus for the rest of its life
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certain compound that can repel mosquitos. When burned‚ it also produces an aromatic smell which is soothing and relaxing. This ingredient can also be burned easily. It is perfect for the production of katol‚ a coil of incense used to kill and repel mosquitoes here in the Philippines. It is more effective when lanzones peelings are dried first under the sun so it will be more combustible. When combined with starch‚ the group will be able to produce a mosquito coil quite similar to those on the market
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Review of Related Literature Pandan leaves come from the Pandanus amaryllifolius shrub‚ also known as the dwarf or fragrant screw pine. This sprawling perennial plant is native to Southeast Asia and has been introduced in other tropical regions. It produces spirally arranged leaves about 1 to 1 1/2 incheswide and up to 18 inches in length. This shrubby perennial plant has fan shaped clusters of long‚narrow leaves. Pandan leaves also contain compounds that repel some species of cockroachesand are
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type‚ but only short-term immunity to the others. Subsequent infection with a different type increases the risk of severe complications. As there is no commercially available vaccine‚ prevention is sought by reducing the habitat and the number of mosquitoes and limiting exposure to bites. Treatment of acute dengue is supportive‚ using either oral or intravenous rehydration for mild or moderate disease‚ and intravenous fluids and blood transfusion for more severe cases. The incidence of dengue fever
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2012 from the Department Of Health informing the public that the West Nile Virus has become a health problem in Columbus‚ Oh‚ once again. The news press advised people of Columbus in many ways how to prevent the bites of mosquitoes‚ how to stop the breeding of the mosquitoes‚ how to prevent breeding‚ who to contact once bitten or contract the virus. The press release is informative the press release gives notice of the situation regarding the mosquito problem. The press release identifies the
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The Outbreak Of Dengue Fever In Davuilevu Housing. Aims The aim of this task is to : Evaluate the effectiveness of the control measures taken o prevent dengue. Emphasise on the steps taken before‚ during and after the occurunce of dengue fever. Objectives The objectives are to highlight on: To evaluate the management procedures and legislation that are implemented in davuilevu housing during dengue. To elucidate the effectiveness of dengue.
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AbstractBackgroundMosquitoes transmit serious human diseases‚ causing millions of deaths every year. Use of synthetic insecticides to control vector mosquitoes has caused physiological resistance and adverse environmental effects in addition to high operational cost. Insecticides of botanical origin have been reported as useful for control of mosquitoes. Azadirachta indica (Meliaceae) and its derived products have shown a variety of insecticidal properties. The present paper discusses the larvicidal
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preventing the lymph to pass through to the lymph nodes (Elephantiasis‚ 2015). The blockage causes the lymph to build up in the body‚ and swell around the limb where the blockage occurs (Elephantiasis Tropica‚ 2014). Also‚ elephantiasis can be caused by mosquitoes infected with roundworms. When this is the cause‚ the disease is referred to as‚ Lymphatic filariasis; however‚ the names are interchangeable. This type of elephantiasis is
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