Many people experience no signs or symptoms of a dengue infection. When symptoms do occur, they may be mistaken for other illnesses — such as the flu — and usually begin four to 10 days after you are bitten by an infected mosquito. Dengue fever causes a high fever — 104 F (40 C) — and any of the following signs and symptoms:  Headache Muscle, bone or joint pain Nausea Vomiting Pain behind the eyes Swollen glands Rash  Most people recover within a week or so. In some cases, symptoms worsen and can become life-threatening. This is called severe dengue, dengue hemorrhagic fever or dengue shock syndrome. Severe dengue happens when your blood vessels become damaged and leaky. And the number of clot-forming cells (platelets) in your bloodstream drops. This can lead to shock, internal bleeding, organ failure and even death. Warning signs of severe dengue fever — which is a life-threatening emergency — can develop quickly. The warning signs usually begin the first day or two after your fever goes away, and may include:  Severe stomach pain Persistent vomiting Bleeding from your gums or nose Blood in your urine, stools or vomit Bleeding under the skin, which might look like bruising Difficult or rapid breathing Fatigue Irritability or restlessness 
people experience signs symptoms dengue infection  symptoms occur  may mistaken illnesses — flu — begin 10 days bitten infected mosquito  dengue fever causes high fever — 104 (40 c) — following signs symptoms:  headache muscle  bone joint pain nausea vomiting pain eyes swollen glands rash  people recover week so  cases  symptoms worsen can life-threatening  called severe dengue  dengue hemorrhagic fever dengue shock syndrome  severe dengue happens blood vessels damaged leaky  number clot-forming cells (platelets) bloodstream drops  can lead shock  internal bleeding  organ failure death  warning signs severe dengue fever — life-threatening emergency — can develop quickly  warning signs begin first day fever goes away  may include:  severe stomach pain persistent vomiting bleeding gums nose blood urine  stools vomit bleeding skin  look like bruising difficult rapid breathing fatigue irritability restlessness 
dengue fever