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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population living in areas at risk for infection‚ dengue virus is a leading cause of illness and death in the tropics and subtropics. As many as 400 million people are infected yearly. Dengue is caused by any one of four related viruses transmitted by mosquitoes. There are not yet any vaccines to prevent infection with dengue virus and the most effective protective measures are those that avoid mosquito bites. When infected‚ early recognition and prompt supportive treatment can substantially lower the risk
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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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SAFETY AND ENVIRONMENT EDUCATION FOR DEVELOPMENT ARTICLE ON DENGUE FEVER What is dengue fever? Dengue fever is a disease caused by a family of viruses that are transmitted by mosquitoes. It is an acute illness of sudden onset that usually follows a benign course with symptoms such as headache‚ fever‚ exhaustion‚ severe muscle and joint pain‚ swollen glands (lymphadenopathy)‚ and rash. Other signs of dengue fever include bleeding gums‚ severe pain behind the eyes‚ and red palms and soles. Dengue
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Dengue fever is a disease caused by one of a number of viruses that are carried by mosquitoes. These mosquitoes then transmit the virus to humans. The virus that causes dengue fever is called an arbovirus‚ which stands for arthropod-borne virus. Mosquitoes are a type of arthropod. In a number of regions‚ mosquitoes carry this virus and are responsible for passing it along to humans. These regions include the Middle East‚ the far East‚ Africa‚ and the Caribbean Islands. In these locations‚ the
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Female mosquitoes bite to obtain the protein from blood that they use to nourish their eggs‚ according to the Department of Health. Body odors and the carbon dioxide exhaled through breath attract the insects‚ while repellents make people less appealing. Mosquitoes can carry dangerous diseases like dengue and malaria‚ according to the DOH. Certain repellents -- like those containing citronella oil‚ rosemary oil‚ and lemongrass oil -- are likely to repel these mosquitoes.
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throughout Africa and tropical America.The disease yellow fever is spread through mosquitoes feeding on humans and through that process they give it to the human that they have fed on.It is believed that the virus was conceived in Africa and that the ships brought over the disease to America through the slave trade.The type of mosquitoes that usually get infected are Aedes or Haemagogus mosquitoes. These mosquitoes get infected by feeding off of infected primates‚ keep in mind this could be non-human
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Panama Canal is the one of the seven wonders of industrial world and it was opened on August 15‚ 1914. First‚ this project was initiated by a French diplomat‚ Ferdinand de Lesseps but in the end it was finished by an American General‚ Colonel George Goethals. To construct it‚ mankind has spent over three million dollars and twenty-eight thousands of innocent lives. However‚ mother nature has also paid horrendous price for this project too. Because of flooding Panama‚ Gatun Lake was created. This
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THE EFFECT OF PEST INFESTATION IN THE HOSPITALITY INDUSTRY ASSESSMENT OF THE EFFECTS IF PEST INFESTATION IN THE HOSPITALITY INDUSTRY There are so many ways that pest infestation can have negative impact in the hospitality establishment which ranges from profit losses to lower employee morale‚ legal actions in form of fines‚ sanctions‚ closure of the hospitality premises‚ health risk etc. pest infestation not only destroy the hospitality reputation but can also cause physical damage to the
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vector mosquitoes exist‚ there is a risk of being infected. However‚ once a person has been infected by dengue‚ he/she attains acquired immunity that is usually permanent. I. CAUSATIVE AGENT The causative agent for dengue is the Aedes aegypti mosquito. The characteristics of the mosquito are the following: * A day biting mosquito (6am to 4am) * Lays eggs in clear and stagnant water found in flower vases‚ cans‚ rain barrels‚ old rubber tires‚ etc. * The adult mosquitoes rest in
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