Doctor For Dengue In Mumbai Dengue is a febrile illness that is caused by one of four dengue virus ( DENV ) types ( DEN – 1, DEN – 2, DEN – 3, and DEN – 4 ). The likelihood for development of severe dengue is highest among individuals who develop a second dengue infection caused by a different virus type from the first infection. Dengue is afebrile illness caused by a flavivirus transmitted by Aedes aegypti or Aedes albopictus mosquitoes while taking a blood meal. The mosquito repellants are an integral part of personal protection for prevention of mosquito bites. The use of insecticide treated curtains has been successful in reducing populations of A. aegypti mosquitoes. Insecticide spraying in response to dengue outbreaks is not highly effective, since A. aegypti mosquitoes frequently breed inside houses. Infection with one DENV type provides long – term protection against reinfection wit that same type, supporting the feasibility of an effective dengue vaccine. Following infection with one type, there is short – lived immunity and cross protection against disease caused by the other three DENV types. One vaccine, CYD – TDV ( Dengvaxia ) has been licensed in over 20 countries in Latin America and Southeast Asia. Vaccines in advanced clinical development include TAK – 003 and a tetravalent, live – virus attenuated vaccine. There is no direct antiviral therapy available against the DENVs. The guidance from a specialist should be sought at the earliest. The treatment is mainly supportive, which largely consists of maintaining adequate intravascular volume. Patients with suspected dengue should be assessed carefully under guidance of a specialist. Early recognition of progression to severe disease and patients at increased risk for severe disease is essential, with prompt initiation of more aggressive therapy when necessary. Outpatient management is appropriate for patients with presumptive diagnosis of dengue in the absence of warning signs of severe infection. Patients should be instructed to take plenty of fluids and watch for signs of dehydration.