Symptoms of Dengue

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The incubation period of the disease is 3-14 days.  

Between 40% and 80% of infections are asymptomatic, which means they can go unnoticed.

In cases where there are symptoms, there tends to be a flu-like clinical picture, which includes:  

Thermometer with a danger signal indicating fever

High fever.  

Person with hand on temple with headache

Headache (particularly behind the eyes).  

Woman with generalised pain

Muscular or joint pain. 

Person with sweat, nausea and vomiting next to a toilet

Nausea or vomiting. 

Fatigued woman sweating


Person standing with diarrhoea cramps


Man with skin blemishes

Skin rash.  

These symptoms don’t tend to last for more than ten days, although the convalescence period may be much longer.  

In a small number of cases, the patient may develop symptoms of severe dengue. The warning signs may include: 

Standing person with abdominal pain

Intense abdominal pain.  

Person with sweat, nausea and vomiting next to a toilet

Persistent vomiting. 

Nose with a drop

Bleeding nose or gums. 

Swollen hand due to fluid retention

Liquid retention. 

Increased respiratory rate

Accelerated breathing. 

Walking person with lack of coordination, unsteady gait or ataxia

Neurological alterations, lethargy or restlessness. 

The donations that can be done through this webpage are exclusively for the benefit of Hospital Clínic of Barcelona through Fundació Clínic per a la Recerca Biomèdica and not for BBVA Foundation, entity that collaborates with the project of PortalClínic.


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