Dengue recovery patient overview

Overview

Dengue is a viral infection spread by mosquito bites. It causes flu-like symptoms such as high fever, body aches, and rash. Most people get better within a week or two, but it can become serious.

Dengue is common in tropical and subtropical regions around the world, including parts of Southeast Asia, the Caribbean, South America, and Africa. Outbreaks can occur in many countries.

Anyone living in or traveling to areas where dengue is present can get infected. People who have had dengue before are at higher risk for severe dengue if they get infected again.

Symptoms

Common symptoms

• Sudden high fever (up to 104°F or 40°C)
• Severe headache, especially behind the eyes
• Pain in muscles, joints, and bones
• Nausea and vomiting
• Swollen glands
• Rash that appears a few days after fever starts

Symptoms in children

• Symptoms may be milder, like a cold or stomach bug
• Irritability and fussiness
• Vomiting and diarrhea
• Red spots on the skin

Symptoms in older adults

• Higher risk of developing severe dengue
• Prolonged fatigue and weakness
• Signs of dehydration like dizziness and dry mouth
• Confusion or trouble thinking clearly

Causes

Main causes

• Dengue virus — there are four types (DENV-1, 2, 3, 4). Infection with one type does not protect against the others.
• Transmission through the bite of an infected Aedes aegypti or Aedes albopictus mosquito.

Risk factors

• Living in or traveling to areas where dengue is common
• Previous infection with dengue (increases risk of severe dengue if infected again)
• Being an infant, older adult, or pregnant woman
• Weakened immune system due to other conditions

When to see a doctor

See a doctor urgently if:

• Any of the emergency warning signs listed above
• If you have dengue and develop sudden abdominal pain, bleeding, or vomiting that won't stop

Book a routine appointment if:

• If you have a fever and have traveled to a dengue-affected area recently
• If mild symptoms do not improve after a few days
• To confirm diagnosis and rule out other illnesses

Diagnosis

A doctor will ask about your symptoms and recent travel history and order a blood test to check for the dengue virus or antibodies your body has made.

Tests that may be done

• NS1 antigen test — can detect the virus early, in the first few days of symptoms
• PCR test — looks for the virus's genetic material
• Antibody test (IgM and IgG) — shows if you have a current or past infection

What to expect at your appointment

The blood test is quick and simple. Results may take a day or two. Your doctor will explain what the results mean and advise on next steps.

Treatment

There is no specific cure for dengue. Treatment focuses on managing symptoms and preventing dehydration. Most people recover at home with rest, fluids, and fever control.

Self-care at home

• Get plenty of rest — your body needs energy to fight the virus.
• Drink lots of fluids — water, clear soups, and oral rehydration solutions. Aim for small amounts often.
• Take paracetamol (acetaminophen) for fever and pain. Do not take ibuprofen, aspirin, or other NSAIDs — they increase bleeding risk.
• Use a mosquito net or repellent to avoid getting bitten again. This stops you from spreading the virus further.
• Monitor your temperature and watch for warning signs. Keep a diary of symptoms to share with your doctor.

Medical treatments

For severe dengue, hospital care is needed. Treatment includes intravenous (IV) fluids to prevent dehydration, close monitoring of blood pressure and organ function, and blood transfusions if there is significant bleeding. Doctors will adjust fluids and electrolytes to keep you stable.

Living with this condition

Recovery from dengue takes time. Even after the fever goes away, you may feel tired and weak for several weeks. It's important to take it easy and gradually return to your normal routine. Keep drinking plenty of fluids and eat small, nutritious meals. Avoid alcohol and heavy physical activity until you feel fully recovered.

Lifestyle tips

• Rest as much as you need — listen to your body.
• Prevent mosquito bites for at least a week after symptoms start to avoid spreading the virus.
• Avoid using aspirin or ibuprofen for pain — stick to paracetamol.
• Stay hydrated every day.

Diet and exercise

Eat light, easy-to-digest foods like soups, rice, bananas, and toast. Include foods high in vitamin C and iron to help your body recover (like citrus fruits, leafy greens, and lean protein). Avoid fatty or spicy foods if your stomach is upset. Start gentle exercise like short walks only when you have energy — don't push yourself.

Mental health and emotional wellbeing

Feeling anxious, frustrated, or down during recovery is normal. The long fatigue can affect your mood. Talk to family or friends about how you're feeling. If low mood lasts for more than two weeks or you feel hopeless, speak to your healthcare provider — they can connect you with support.

Prevention

Yes. The best way to prevent dengue is to protect yourself from mosquito bites. Use insect repellent, wear long sleeves and pants, sleep under mosquito nets, and remove standing water around your home where mosquitoes breed.

Vaccines

There is a vaccine for dengue, but it is not recommended for everyone. It is used mainly for people who have had dengue before and live in areas where the disease is very common. Talk to your doctor to find out if the vaccine is right for you.

Complications

If left untreated

• Severe dengue (dengue hemorrhagic fever) — can cause bleeding, shock, and organ damage.
• Plasma leakage — fluid leaks from blood vessels, leading to dangerously low blood pressure.
• Respiratory distress — trouble breathing due to fluid buildup.
• Liver or heart damage in rare cases.

Long-term outlook

With early recognition and proper care, most people recover fully from dengue. Severe dengue is serious, but in hospitals with good supportive care, the vast majority of patients survive. The key is to watch for warning signs and seek medical help quickly if they appear. Even after severe dengue, many people go on to live normal, healthy lives.

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