SOME BASIC FACTS ABOUT DENGUE FEVER AND OUR APPROACH TO THIS GROWING MENACE
Dengue epidemics are known to have occurred over the last three centuries the first documented epidemic was in the French West Indies in 1635. The first confirmed epidemic of was in the Philippines in 1953-1954. Since then, All regions affected by the Tsunami have are endemic to dengue. Dengue (pronounced den’ gee) is a disease caused by is a mosquito-borne of an arbovirus, belonging to the genus Flavivirus. The viruses that cause dengue fever and dengue haemorrhagic fever are transmitted by primarily the mosquito Aedes aegypti, and to a lesser extent by Ae. albopictus. Aedes aegypti breeds mainly in stored water collections in made by human settlements. The mosquito gets the Dengue virus after biting an infected human being. Dengue is not contagious, which means that it does not spread directly from person to person. Healthy persons develop dengue fever following the bite of an infected Aedes aegypti hasa whitish body with spots and long legs and breeds in clean water. It has a flight range of only 100 200 metres, rests indoors, in other dark places or outdoors in where it is cool and shaded.
THE SYMPTOMS OF DENGUE FEVER are a sudden onset of high fever 102-105 degrees F, severe headache (mostly in the forehead), pain behind the eyes, severe body aches and joint pains. nausea or vomiting, skin rashes, painful tender muscles and a feeling of sleeplessness.
PREVENTION AND CONTROL OF DENGUE INFECTION No vaccine or specific drugs are available as yet. The mosquito Aedes aegypti does not travel long distances hence destruction of all breeding places will go a long way in preventing Dengue Wear protective clothing as Aedes aegypti bites during the day time and the maximum biting intensity is about 2 hours after sunrise and before sunset. Use mosquito repellents and mosquito nets. The nets can be made more effective by treating them with a pyrethroid insecticide Regular changing of water plus cleaning flower vases, buckets, jugs etc. should be done on a daily basis. Protective water storage measures Adequately cover all water storage containers .Mosquito-proofing of Domestic storage tank; Desert coolers, condensation under refrigerators. and air conditioners should be inspected drained and cleaned Chemical Control with organophosphate insecticides (fenthion. malathion and fenitrothion) are used for Ae. aegypti adult control and temephos is useful as a larvicide In addition Thermal fogs, Ultra-low volume (ULV), aerosols (cold fogs) and mists applied by portable machines are used The best time for application of chemicals is at 0600-0830 hours in the early morning or late afternoon between 1700-1930 hours.