high frequency sounds). These electronic devices have been shown to have no effect as a mosquito repellent by studies done by the EPA and many universities.[1] Insect repellents help prevent and control the outbreak of insect-borne diseases such as malaria‚ Lyme disease‚ dengue fever‚ bubonic plague‚ and West Nile fever. Pest animals commonly serving as vectors for disease include the insects flea‚ fly‚ and mosquito; and the arachnid tick. Synthetic repellents tend to be more effective and/or longer
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IV V INTRODUCTION. Dengue fever is an infectious disease caused by a virus. It is infected by mosquito bites. It is common in warm‚ wet areas of the world. Outbreaks happen during the rainy season. Most people with dengue recover within 2 weeks. However some people with dengue infectious are severe and causes bleeding from nose‚ gums and under the
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Lazaro Castillo 04/16/2012 Infectious Diseases One infectious disease I will be discussing is called Diphtheria. Diphtheria is a highly contagious bacterial infection‚ which mainly affects the nose‚ throat and occasionally the skin‚ but in more serious cases‚ it can attack the heart and nerves. Diphtheria is caused by a bacterium known as C. diphtheiae. The bacteria produce a toxin (poison) that is carried in the bloodstream and causes tissue damage in the area of infection‚ usually the nose
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Dengue Fever Kimberly A. Bitanga Microbiology Professor J. Gray Dengue Fever Abstract Dengue fever is a debilitating tropical disease caused by one of five types of the dengue virus.(1) It is transmitted by mosquitos throughout the tropics and subtropics of not only Southeast Asia‚ but has now spread to Central and South America‚ and countries in the Pacific Ocean and America as well. Usually‚ most people who are infected with the virus are asymptomatic‚ with mild symptoms‚ whereas others develop
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Dengue Fever Makes Inroads into the U.S. The mosquito-borne infection is cropping up in Florida‚ but mysteriously not in similar regions in the nation By Dina Fine Maron Most Americans lose little sleep over dengue fever. The mosquito-borne infection is a leading killer in the tropics and subtropics‚ but it’s been a long-held belief that ubiquitous air-conditioning‚ few open windows and limited time outdoors protects us from dengue. And in fact‚ for the past century most U.S. cases (except
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Wuchereria bancrofti is a human parasitic roundworm that is the major cause of lymphatic filariasis. Wuchereria bancrofti‚ Brugia malayi and B. timori are the three filarial species cause lymphatic filariasis. They are spread by a mosquito vector and human is the definitive host. In lymphatic filariasis‚ repeated episodes of inflammation and lymphedema lead to lymphatic damage‚ chronic swelling‚ and elephantiasis of the legs‚ arms‚ scrotum‚ vulva‚ and breasts . Epidemiology W. bancrofti occurs in
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solution of Lemongrass and Garlic. The set up was composed of experimental and control group. The experimental group was being sprayed using a specific commercial pesticide. On the other hand‚ the control group was being sprayed using the organic mosquito killer. Data were collected to gather relevant information. In the light of the findings of the study‚ it was found out that the solution composing of 40 mL solution of Garlic and Lemongrass extract can kill mosquitoes in a short span of time compared
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Page 1 of 6 Life Cycle of Malaria Page 2 of 6 Malaria is an ancient disease transmitted by the Anopheles mosquito that predates recorded history. Historically it was common in the swampy areas around Rome‚ and was believed that the tainted air in those locations made people very sick‚ the disease was therefore named malaria for the Latin root words bad air. Malaria is caused by small parasitic protozoa of the genus Plasmodium which infects both humans and mosquitoes in a cyclical process.
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of many types of plants and flowers.Pandan leaves also contain volatile oil‚ an essential oil found in plants‚ whisch helps torepel vermins.One of the reasons why we did this study is to reduce the use of deet. DEET as we allknows a very effective mosquito repellent but this is what we are trying to avoid. It is highlyconcentrated toxic that could make us hard to breath‚ have cough‚ minimal alertness‚ seizures‚trouble stomach and vomiting. If you accidentally sprayed DEET into your eyes‚ mouth andnose
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What is Dengue fever? Dengue fever (pronounced Den-gay) is a viral infection caused by the female mosquito (Aedes aegypti and Aedes albopictus). Dengue fever occurs in tropical and sub-tropical regions and usually increases in the hot and humid months. Dengue fever is not a new disease. It was discovered several hundred years ago. In recent years‚ dengue fever has become a major international public health concern. Dengue fever nicknamed "breakbone fever" because dengue patients usually express
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