Uploaded byDr. S. Rajendra Kumar
Dengue mce 21_11_2012
This document provides information about dengue fever, including its causes, symptoms, distribution, history, and prevention. It is caused by infection with a virus transmitted by the Aedes mosquito. The document describes the characteristics and life cycle of the Aedes mosquito, how it transmits diseases like dengue, and the symptoms of dengue fever ranging from mild to severe including dengue hemorrhagic fever. It also discusses the history of dengue, its global distribution, available tests and treatments. The key message is that prevention through mosquito control and avoiding breeding sites is important since there is no vaccine.
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Dengue mce 21_11_2012
- 1. DENGUE FEVER Dr. S. Rajendra Kumar Dept. Science & Humanities Mookambigai College of Engineering http://www.mosquitoage.org/Portals/12/Images/dengue%20virus_em.jpg
- 2. Dengue fever Whatdid you know… VS What you need to know…
- 3. Contents 1. What isdengue fever 2. Distribution & History of dengue fever 3. Symptoms of dengue fever 4. Characteristics of the Aedes mosquito 5. Life cycle of the Aedes mosquito 6. How the Aedes mosquito transmit diseases 7. Health issues due to dengue fever 8. Treatment related to Dengue fever 9. How to prevent the spread of dengue fever – Site Control
- 4. What is denguefever? Dengue Fever is an illness caused by infection with a virus transmitted by the Aedes mosquito. Dengue Fever (DF) and Dengue Haemorrhagic Fever (DHF) are the most common mosquito-borne viral disease in the world. It can be fatal.
- 5. Symptoms of DengueFever Example of a skin rash due to dengue fever
- 6. Dengue is atropical febrile disease http://gamapserver.who.int/mapLibrary/Files/Maps/World_DengueTransmission_Extension_2008.png
- 7. Dengue Fever hasa long history… www.philadelphia-reflections.com/topic/17.htm 992- Chinese Encyclopedia 1780- Philadelphia “break-bone fever” Benjamin Rush
- 8. Isolated by AlbertSabin in 1944 http://www.notablebiographies.com/images/uewb_09_img0622.jp g
- 9. Spread of thevector and the disease go hand in hand www.latinamericanstudies.org/Transatlantic.htm Transatlantic Slave Trade World War II http://neatorama.cachefly.net/images/2007-09/world-war-2.jpg
- 10. …and become aMAJOR pandemic in the last 50 years Endemic in more than 1oo countries 2.5 billion people at risk www.tatterhood.com/category/gameart/tastyplanet
- 11. How is itspread?? http://www.metapathogen.com/IMG/Aedes-aegypti.jpg THE VECTOR: Aedes aegypti
- 12. Characteristics of the AedesMosquito One distinct physical feature – black and white stripes on its body and legs. Bites during the day. Lays its eggs in clean, stagnant water and year Close-up of an Aedes mosquito around breading Favourite zone – Tropical regions, Breeding temperature 16 – 40o C
- 13. Do you know… Onlythe female Aedes mosquito feeds on blood. This is because they need the protein found in blood to produce eggs. Male mosquitoes feed only on plant nectar. On average, a female Aedes mosquito can lay about 300 eggs during her life span of 14 to 21 days.
- 14. Life cycle ofthe Aedes Mosquito 21 days 1-2 days Longevity, Fly range <1/2km Pupae Larvae Eggs 4-5 days 2-3 days Eggs Desiccation Stagnant water for and years
- 15. How Do AedesMosquitoes Transmit Diseases... Mosquito bites and sucks And passes the virus blood containing the virus to healthy people from an infected person. when it bites them. Virus is carried in its body. Aedes mosquitoes breeding… Dengue Virus infections …
- 16. Dengue Presentation Early Stage Initially like other viral fever But later………. Fever Rash Severe headache Musculoskeletal pains
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- 18. Dengue Presentations -Dengue Hemorrhagic Fever (DHF) / Dengue Shock Syndrome (DSS) Symptoms: Plasma leakage Hepatomegaly Low blood pressure Hypovolemic shock Death
- 19. Dengue Presentation -Bleeding from where? Bleeding into skin From Gums From Nose Into our food passages Blood in urine
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- 22. Large bleed intoskin
- 23. Rare types ofDengue Brain fever Liver damage Heart damage Severe bleeding into stomach
- 24. What are thetests needed? Routine blood test Tests to check the clotting process Special tests to identify the Dengue or its foot marks in our blood Urine to check protein leak
- 25. Treatment of Dengue Supportive measures – Mosquito screen Avoid Aspirin and pain killers Steroids should not be used Plenty of water and salt are required Children below 12 require careful watch for dangerous form No antibiotics are of proven value
- 26. Can we protectourselves? There is no vaccine available as yet But we can prevent the disease by preventing ourselves from mosquito bite
- 27. There is nospecific treatment for DHF http://www.health-res.com/EX/08-01-15/82560-main_Full.jpg Can only treat the symptoms
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- 31. Prevent Aedes fromBreeding! Remove ALL sources of stagnant water. Deny the Aedes mosquito of any chance to breed.
- 32. Angry VHN inaction- enemy home under attack
- 33. Appears to becomplex problem- but solutions are simpler
- 34. Keep the unusedgrinder stone upside down – Encourage to use as a sitting stone
- 35. Washing with bleachingpowder or ash and a brush
- 36. Lock the concretemixer in upside down position after work
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- 38. All plastic wastesare removed
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- 40. How can westop it? Mosquito control: Improved water storage – Physical Introduction of mosquito-eating fish – Biological Insecticides - Chemical
- 41. How can westop it? 1. Anti Larval Measures: Treating breading source with chemical larvicide “Temephos 50%” EC at the rate of 1ppm 2.Anti Adult Measures: indoor and outdoor thermal fogging operation using 1 part of Pyrethrum 2% and 19 parts diesal. Out door: 60 litre of Pyrethrum, 114 litre diesal are mixed for fogging
- 42. Spread the dengueprevention message to others… Let your family, friends and neighbours know about the dangers of breeding Mozzies!!
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