Dengue- How Much Do You Know?

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With all the dengue cases coming up, we want to be sure that you know all about it. This article will tell you all that you ought to know about dengue to be able to combat it most in the most robust manner.


1. What causes dengue?

Dengue is caused by Dengue fever Virus (DENV). It is common in more than 110 countries affecting millions of people. However, it is not very fatal and in 95-99% of persons affected, it can be cured.

A bite from aedes mosquito carrying the virus from another infected person infects humans with dengue virus. Blood transfusion (mixing of blood of an infected person to the uninfected), organ transplant etc. can also be the causes.


2. Mechanism of disease

Dengue virus enters white blood cells, and reproduces inside the cells while they move throughout the body. The white blood cells respond by producing a number of signaling proteins, such as cytokines and interferons, which trigger the immune system responsible for many of the symptoms, such as the fever, the flu-like symptoms, and the severe pains.

In severe infection, the virus production inside the body is greatly increased, and many more organs (such as the liver and the bone marrow) can be affected. Fluid from the bloodstream leaks through the wall of small blood vessels into body cavities due to infections. Therefore, less blood circulates in the blood vessels, and the blood pressure becomes so low that it can no longer supply sufficient blood to prominent organs.


3. Who are more prone?

Severe disease is more common in babies and young children, and in contrast to many other infections, it is more common in children who are relatively well nourished. Dengue can be life-threatening in people with chronic diseases such as diabetes and asthma.


4. Symptoms

Treatment is possible only when the disease is identified correctly. Some characteristic symptoms that can help identify dengue fever are -

1.     sudden-onset fever

2.     It involves high fever, potentially over 40 °C (104 °F) which lasts for 2 to 7 days

3.     headache

4.     Typically located behind the eyes, headache in Dengue is accompanied by body pain

5.     muscle and joint pains

6.     Dengue is also called break-bone fever because of the severe joint pain associated with it.

7.     nausea and vomiting

8.     Because of the blood fluids leaking into body cavity causing a decreased blood pressure, patient may vomit or feel nauseous.

9.     Measles-like rash

A rash occurs in 50 to 80 percent of the cases. The skin appears flushed and red in the first 2 days and then develops into what looks like an island of white in a sea of red or small red spots.. 


5. Prevention

Hygienic environment must be maintained so that mosquitoes don’t thrive in our vicinity. Full sleeved clothes which cover the most area of the skin should be worn as Dengue-carrying mosquitoes also bite during the day. With proper care and precautions, mosquito-control measures and protection against mosquitoes; the war against dengue can be won.


As the famous quote goes, ‘Knowing is half the battle’, being aware and learned about Dengue is half the solution. The other half includes prevention and cure which should be done by an authorized doctor.


TAGGED IN : Dengue Mosquito Bite Fever

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