Dengue fever (DENG-gey) is a mosquito-borne disease that occurs in the tropics and subtropics of the world. Mild dengue fever causes a high fever and flu-like symptoms. The severe form of dengue fever, also known as dengue hemorrhagic fever, can lead to profuse bleeding, a sudden drop in blood pressure (shock) and death.
- Millions of dengue infections occur worldwide each year. Dengue fever is most common in Southeast Asia, the islands of the western Pacific, Latin America, and Africa. But the disease has spread to new areas, including local outbreaks in Europe and the southern United States.
- Researchers are working on vaccines against dengue fever. Currently, in areas where dengue fever is common, the best way to prevent infection is to avoid becoming infected by mosquitoes and to take steps to reduce the mosquito population.Dengue fever treatment hyderabad
Many people have no signs or symptoms of dengue infection.
When symptoms appear, they can be mistaken for other illnesses – like the flu – and usually start four to ten days after you’ve been interviewed by an infected mosquito.
Dengue causes a high fever – 40 ° C – and any of the following signs and symptoms:Dengue fever treatment hyderabad
- a headache
- Muscle, bone or joint pain
Dengue fever is caused by one of four types of dengue virus. You cannot get dengue fever if you are around an infected person. Instead, dengue fever is spread through mosquito bites.
The two types of mosquitoes that most commonly spread dengue virus are found both in and around human homes. When a mosquito bites a person infected with a dengue virus, the virus invades the mosquito. When the infected mosquito bites another person, the virus gets into that person’s bloodstream and causes an infection.Dengue fever treatment hyderabad
You are at a higher risk of developing dengue fever or more severe form of the disease if:
- You live or travel in tropical regions. Being in the tropics and subtropics increases your risk of exposure to the virus that causes dengue fever. Areas at particular risk are Southeast Asia, the islands of the western Pacific, Latin America and Africa.
- You have had dengue fever in the past. Previous infection with a dengue virus increases the risk of developing serious symptoms if you have dengue fever again.Dengue fever treatment hyderabad
Severe dengue fever can cause internal bleeding and organ damage. Blood pressure can drop to dangerous levels and cause shock. In some cases, severe dengue fever can be fatal.
- Women who develop dengue fever during pregnancy may be able to pass the virus on to the baby during childbirth. In addition, babies of women who develop dengue fever during pregnancy are at greater risk of premature birth, low birth weight, or fetal distress.Dengue fever treatment hyderabad
In areas of the world where dengue fever is common, a dengue vaccine (Dengvaxia) is approved for people aged 9 to 45 who have had dengue fever at least once. The vaccine is given in three doses over a period of 12 months.
- The vaccine is only approved for people who have a history of dengue fever or who have had a blood test that indicates a previous infection with one of the dengue viruses – known as seropositivity. In people who have not had dengue fever in the past (HIV negative), receiving the vaccine appears to increase the risk of severe dengue fever and future dengue hospitalization.Dengue fever treatment hyderabad