Dengue is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. It is caused by the dengue virus, which is a single-stranded RNA virus. There are four different serotypes of the dengue virus, and infection with one serotype does not provide lifelong immunity to the others. This means that a person can be infected with dengue multiple times.
The symptoms of dengue fever are similar to those of other viral illnesses, such as the flu. They typically include:
- High fever
- Body aches
- Pain behind the eyes
- Nausea and vomiting
In some cases, dengue can develop into a more severe form called dengue hemorrhagic fever (DHF). DHF is characterized by bleeding, low blood pressure, and organ failure. It can be fatal if not treated promptly.
There is no specific treatment for dengue. Treatment is supportive and includes measures to relieve fever, pain, and fluid loss. In severe cases, hospitalization may be required.
The best way to prevent dengue is to avoid mosquito bites. This can be done by:
- Wearing long sleeves and pants
- Using insect repellent
- Sleeping under a mosquito net
- Eliminating mosquito breeding grounds, such as standing water
There are also two dengue vaccines available. However, they are not yet widely available and are only recommended for people who are at high risk of infection.
Dengue is a serious illness, but it is preventable. By taking steps to protect yourself from mosquito bites, you can help to reduce your risk of infection.
Here are some additional things to know about dengue:
- Dengue is most common in tropical and subtropical areas, but it can also occur in temperate areas.
- The mosquitoes that transmit dengue are active during the day, so it is important to take precautions against mosquito bites during the day.
- There is no cure for dengue, but most people recover within a week or two.
- Severe dengue is a medical emergency and requires hospitalization.
- There are two dengue vaccines available, but they are not yet widely available.
If you think you may have dengue, it is important to see a doctor right away. Early diagnosis and treatment can help to prevent complications.