explain how the dengue virus poses a great threat to the region and how it plagues the lives of thousands of people in Asia. What is the dengue virus and how does it behave? The dengue virus is a flu-like viral disease spread by the bite of infected mosquitoes (THREE). Symptoms of this virus include nausea‚ severe cramping‚ other flu-like symptoms and quite often also leads to death. Initially‚ the virus begins to show itself in the host through symptoms relating to a high fever‚ rash‚ pain behind the
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Malayan High School of Science The Effeciency of Eucalyptus Oil and Citronella Oil as a Mosquito Repellent Against Aedes aegypti (Submitted in partial fulfilment of the requirements in Research 1) Submitted by: Francesca Magno Fay Fadul Maxine Mendoza Ariana Bacquial Darren Obligar Table of Contents Profile i CHAPTER I 1 I. Introduction 1 II. Statement of the problem 2 III. Significance of the Study 2 IV. Scope and limitations 2 CHAPTER II 3 I. Related Literature
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quinquefasciatus (Diptera: Culicidae) Kadarkarai Murugan & Palanisamy Mahesh Kumar & Kalimuthu Kovendan & Duraisamy Amerasan & Jayapal Subrmaniam & Jiang-Shiou Hwang Received: 26 May 2012 / Accepted: 19 June 2012 # Springer-Verlag 2012 Abstract Mosquitoes are the carriers of severe and wellknown illnesses such as malaria‚ arboviral encephalitis‚ dengue fever‚ chikunguniya fever‚ West Nile virus and yellow fever. These diseases produce significant morbidity and mortality in humans and livestock
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Until a few hundred years ago dengue virus was transmitted in sylvatic cycles in Africa and Asia between mosquitoes of the genus Aedes and non-human primates with rare emergences into human populations. The global spread of dengue virus‚ however‚ has followed its emergence from sylvatic cycles and the primary life cycle now exclusively involves transmission between humans and Aedes mosquitoes. The reason that some people suffer from more severe forms of dengue‚ such as dengue hemorrhagic fever
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objective of the study was to evaluate effectiveness of long lasting nets in comparison with conventional nets as a measure for malaria control. The study was guided by researcher questions: What is the efficacy performance of the nets in killing mosquitoes? What is the physical integrity and durability of netting materials? What is the durability of insecticide chemical in the net when washed? The study was conducted in Muheza district in Tanga. It adopted cross- sectional design and used structured
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The term “survival of the fittest” was first used by Charles Darwin in his book Origin of the Species. Over the years‚ this term has been widely used‚ often with a misconception of the true meaning of it. It will be looked at what this misconception is and why people think this way. Survival of the fittest is thought to explain how natural selection occurs and this will be explained in the essay through Antibiotic-Resistant Bacteria. The misconception idea of “survival of the fittest” described by
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I hope this is what you are looking for... good luck with it. A.) --WATER FLOW IN PLANT: Can water travel through plant stems? MATERIALS: graduated one liter bottle‚1 white carnation with long stem‚ 2 glasses‚ red and blue food coloring PROCEDURE: 1. Pour 500 ml of water into each glass. 2. Add three or four drops of food coloring to each glass. Be sure the color is dark. Add more food coloring if necessary. 3. Very carefully cut the stem in half along the length of the stem from the bottom
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protein found in blood to produce eggs. Male mosquitoes feed only on plant nectar. •The mosquito is attracted by the body odours‚ carbon dioxide and heat emitted from the animal or humans. •The female Aedes mosquito searches for suitable places to lay their eggs. •Aedes are day-biters‚ most active during dawn and dusk. Life cycle of the Aedes mosquito 1-2 days Pupae Larvae Eggs 4-5 days 2-3 days Stagnant water How Do Aedes mosquitoes Transmit Diseases... Mozzie bites an infected
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causes more than a million deaths each year (WHO 2005). One important control strategy against this and other mosquito-borne diseases is control‚ which aims to reduce human-mosquito contact. Different control measures are used routinely against mosquitoes and their larvae‚ including chemical (eg insecticide)‚ biological (eglarvivorous fish or pathogenic fungi)‚ environmental (e.g. land filling or drainage)‚ and personal protection (e.g. Mosquito repellents formulated as pills‚ coils‚ ointments‚ lotions
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During the building of the Panama Canal many problems arose making it hard to construct‚ even on second try. Such problems involved were engineering‚ sanitation‚ and organization. Many lives were lost due to some of the hazards that were present at the time‚ but the canal was eventually finished in 1914. The concept of a canal near Panama dates back to the early sixteenth century. The reason for construction of the Panama
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