Larger text size Large text size Regular text size. What Is Dengue Fever? What Causes Dengue Fever? How Is Dengue Fever Diagnosed? Can Dengue Fever Be Prevented? Be sure to: Use screens on doors and windows, and promptly repair broken or damaged screens.
Keep unscreened doors and windows shut. Have kids wear long-sleeved shirts, long pants, shoes, and socks when they go outside, and use mosquito netting over their beds at night.
Use insect repellent as directed on kids. Choose one with DEET or oil of lemon eucalyptus. Limit the amount of time kids spend outside during the day, especially in the hours around dawn and dusk, when mosquitoes are most active. Don't give mosquitoes places to breed. They lay their eggs in water, so get rid of standing water in things like containers and discarded tires, and be sure to change the water in birdbaths, dog bowls, and flower vases at least once a week.
If you live in or travel to an area where dengue fever is common, these tips may help reduce your risk of mosquito bites:. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version. Overview Dengue DENG-gey fever is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. Request an Appointment at Mayo Clinic.
Share on: Facebook Twitter. Show references AskMayoExpert. Viral hemorrhagic fever. Mayo Clinic; Centers for Disease Control and Prevention. Accessed Oct. Dengue and severe dengue. World Health Organization. Ferri FF. Dengue fever. Young children often have a fever with a rash, but other symptoms are minor. Older children and adults may also just have mild symptoms, however they are more likely to experience classic dengue. Classic dengue is characterized by an abrupt onset of a high fever that may last up to five days, and can sometimes have two phases known as biphasic or saddleback.
You may also have the following symptoms:. These symptoms can also be caused by problems other than dengue fever. You should visit your GP for advice. Dengue fever can sometimes develop into a more serious illness, called dengue haemorrhagic fever. This is rare in travellers, and mostly occurs in children living in countries where the virus is common. It is thought that it may develop if you have been infected before with a different type of flavivirus. If you have dengue haemorrhagic fever, you may have bleeding under your skin, from your gums and your nose, and you may vomit blood or pass blood in your stools.
These symptoms of increased bleeding haemorrhage can also sometimes occur in normal dengue fever. If you have any of these symptoms, you should see your GP. In severe cases of dengue haemorrhagic fever, the condition can suddenly worsen and lead to shock dengue shock syndrome , which can be fatal without proper treatment. Early warning signs for dengue shock syndrome include severe abdominal pain, persistent vomiting, a sudden, marked drop in temperature and mood changes, such as irritability.
You should visit your GP if you feel ill after returning from an area affected by dengue eg South East Asia. Your GP will ask about your symptoms and examine you. You should inform your doctor that you have recently travelled abroad. If your doctor suspects you have dengue fever, you might be asked to have some blood tests.
This is to see whether you have certain antibodies for dengue fever in your blood, and will confirm whether you have the infection. Blood tests can also determine if you have developed dengue haemorrhagic fever. Get Email Updates. To receive email updates about this page, enter your email address: Email Address. Links with this icon indicate that you are leaving the CDC website. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
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