Monday 17 October 2011

DENGUE FEVER,


  • Dengue fever is a disease caused by a family of viruses that are transmitted by mosquitoes.
Many peopleespecially children and teenagers may experience no signs or symptoms during a mild case of dengue feverIf symptoms occurthey usually begin four to ten days after the person is bitten by an infected mosquito. Signs and symptoms of dengue themost include


      SYMPTOMS:




      •  Headache
      •  Fever
      •  Prostration
      •  Severe joint and muscle pain
      •  Swollenglands (lymphadenopathy) and 
      • Rash

      The presence (the "dengue triad") of fever, rash and headache (and other pains) is particularly characteristic of dengue fever.
      • Dengue is widespread in the tropics and subtropicsOutbreaks recently have been in the Caribbeanincluding Puerto Rico, U.S. Virgin IslandsCubaand Paraguay in South Americaand Costa Rica in Central America.
      • Because dengue fever is caused by a virusthere is no specific medicine or antibiotictreatment. For typical denguethe treatment is purely concerned with relief of symptoms (symptomatic).
      • The acute phase of illness with fever and myalgias lasts about one to two weeks.

      Dengue hemorrhagic fever (DHF) is a specific syndrome that tends to affect childrenunder 10 yearsIt causes abdominal painhemorrhage (bleeding) and circulatory collapse(shock).
      The prevention of dengue requires control or eradication of mosquitoes carry the virus thatcauses dengue.
      There is currently no vaccine available for dengue. 
                                                                                                


      SOME OTHER SYMPTOMS:

      • Fever to 106 F (41 C)
      • Headache
      • Muscle, bone and joint pain
      • Pain behind your eyes



      You might also experience



      • widespread rash
      • Nausea and vomiting
      • Minor bleeding from gums or nose
      • Most people recover within a week or so

      In some caseshoweversymptoms can worsenand become life threateningBlood vessels are often damaged and leakand the number of clot-forming cells in your blood dropsThis can lead to:

      • Bleeding from the nose and mouth
      • severe abdominal pain
      • persistent vomiting
      • Bleeding under the skin, which look like bruises
      • Problems with your lungsliver and heart



      DENGUE FEVER




      MOSQUITOE BITING




      DENGUE FEVER AND DENGUE HEMORRHAGIC FEVER:
      • Dengue fever (DF) is an infection of the virus is characterized by acute onset of high fever3-14 days after the bite of an infected mosquito. It usually affects infantsyoung children and adults but rarely causes death.
      Dengue hemorrhagic fever (DHF) is a more severe form of dengue infection and is potentially life threateningusually manifests itself around the time the fever begin to decline,often with a sudden rise in temperature accompanied by facial flush and other flu-like symptoms.EXAMS AND TESTS:     Tests that can be done to determine this condition include:Antibody titer for dengue virus type.Complete blood count (CBC)Polymerase chain reaction (PCR) testing for dengue virus type.TREATMENT:                                                                                                                                       There is no specific treatment for dengue feverYou need fluids if signs of dehydration. Acetaminophen (Tylenol) is used to treat a high feverAvoid taking aspirin.PREVENTION:          Clothing, mosquito repellent, and netting can help reduce exposure to mosquitoes. Travelduring periods of minimal mosquito activity can also be  useful.Mosquito control programs can reduce the risk of infection.                                                                   

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