Dengue Fever


Ruler's of Penmai
Jul 5, 2011
The virus that causes dengue fever is carried by female mosquitoes "Aides Aegypti", it normally feeds during the daytime, and is transmit their virus to humans through their bite. It is more likely to occur during or after the rainy season. Dengue fever can occur to people of all ages but it mostly affects children under the age of 15 years, but can occur in all age groups. Avoiding mosquito bites during the day time is a critical precautionary measure. Infection with one dengue serotype provides lifelong immunity but each individual can eventually be infected by other 3 serotypes. Several serotypes can be in circulation during an epidemic. The virus of the mosquitoes is not contagious and cannot be spread directly from person to person. There must be a person-to-mosquito-to-another-person pathway.

Other Names of Dengue Fever are: Dandy fever, Three-day fever, Breakbone fever. It is called as Breakbone Fever because the Victims of dengue often have contortions due to the intense joint and muscle pain, hence it has named as breakbone fever.

Dengue is prevalent throughout the tropics and subtropics. Outbreaks have occurred in the Caribbean, including Puerto Rico, the U.S. Virgin Islands, Cuba, and Central America. Cases have also been imported via tourists returning from areas with widespread dengue, including Tahiti, the South Pacific, Southeast Asia, the West Indies, India, and the Middle East.

Ayurvedic Name of Dengue Fever is "Dandak Jwara"

Signs & Symptoms of Dengue Fever

The time between the bite of a mosquito carrying dengue virus and the start of symptoms averages 5 to 7 days, with a range of 3 to 14 days. An infected person cannot spread the infection to other persons but can be a source of dengue virus for mosquitoes for about 6 days. When mosquitoes bite an infected person and then it bites another person then the virus is transmitted to one person to another. There are several signs and symptoms of dengue, some of them are as follows:

Signs & Symptoms of dengue include:

  • Chills
  • Flushed face
  • Increase in temperature, a rash, and a headache.
  • The rash consists of small red bumps that begin on the arms and legs, but then spread to the back, abdomen, and chest.
  • Lower back pain and general weakness.
  • Red eyes and eye pain
  • Severe joint and muscle pain
  • Swollen lymph nodes
  • Soles of the feet and palms of the hands also turn red and swell.

These symptoms last for two to three days. Afterward, the fever drops and the patient experiences heavy sweat, but feel better for around one day.


Ruler's of Penmai
Jul 5, 2011
Classic dengue fever is characterized by

-> Sudden and abrupt onset
-> May go up to 39.5-41.4°C
-> Lasts for about 1-7 days, then fades away for 1-2 days

It soon recurs with secondary rashes which is usually not as severe as before

Fever is usually accompanied by headache in front portion of head or behind the eyes

Muscular (Myalgia) or bone pain:
->Occurs after onset of fever
->Affects legs, joints, and lumbar spine
->Usually the pain gets severe after its onset
->The pain may last for several weeks even after the fever has subsided

Pain is usually absent in DHF/DSS

Other symptoms:
->Nausea and vomiting
->Loss of appetite
->Increased sensation to touch
->Change in taste sensation

Symptoms maybe milder in children than in adults

The acute phase of illness can last for 1 week followed by a 1 to 2 week period of recovery period that is characterized by weakness, malaise and loss of appetite.

->Rash - red and white patchy rashes:
->The illness is clinically indistinguishable from Influenza, Measles or Rubella.
->Dengue Hemorrhagic Fever / Dengue Shock Syndrome

Initial stages of the disease resembles symptoms of dengue fever. However fever subsidies after 2 to 7 days followed by signs and symptoms of

->Signs of circulatory failure
Bleeding or hemorrhagic manifestations including:

->Skin bleeds that appear as blotchy red patches called - Petechiae
->Bleeding from Nose or Epistaxis
->Bleeding from gums
->Bleeding from Stomach - appearing as blood in the vomit
Decrease in the blood platelet count (Thrombocytopenia)
Leakage of plasma from vascular compartment leading to increased blood concentration and manifestations of shock.

->These symptoms when not treated may lead to Dengue Shock Syndrome, which when not treated immediately may lead to profound shock and eventually death.
->Warning signs of Dengue Shock Syndrome are
->Severe abdominal pain,
->Change in temperature,
->Mental irritability.

Important Announcements!

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