Dengue recovery in older adults

Overview

Dengue is a viral infection spread by mosquitoes. It causes fever, body aches, and other flu-like symptoms. Most people recover in a week or two, but older adults may have a longer recovery and higher risk of complications.

Dengue is common in many parts of the world, including Southeast Asia, the Americas, Africa, and the Western Pacific. It affects millions each year.

People of all ages get dengue, but older adults tend to have more severe illness and slower recovery. People with underlying health conditions are also at higher risk.

Symptoms

Common symptoms

• High fever
• Severe headache
• Pain behind the eyes
• Muscle and joint pain
• Nausea and vomiting
• Swollen glands
• Rash

Symptoms in children

• Often mild or no symptoms
• When symptoms occur: fever, body aches, rash
• May have more severe vomiting and abdominal pain

Symptoms in older adults

• Symptoms may be more severe
• Higher risk of dehydration, confusion, bleeding, and organ damage
• Recovery is often slower

Causes

Main causes

• Dengue is caused by the dengue virus, transmitted through the bite of an infected Aedes mosquito.

Risk factors

• Living in or traveling to areas where dengue is common
• Older age (over 60)
• Having had dengue before (increases risk of severe dengue)
• Chronic diseases like diabetes or heart disease

When to see a doctor

See a doctor urgently if:

• Any warning signs of severe dengue (as listed under emergency symptoms)
• If symptoms get worse after the fever drops

Book a routine appointment if:

• Fever and body aches after returning from a dengue-endemic area

Diagnosis

Doctors diagnose dengue based on symptoms and a blood test.

Tests that may be done

• Blood test to detect dengue virus or antibodies

What to expect at your appointment

Your doctor will ask about your travel history and symptoms. A blood test can confirm the diagnosis, and results may take a few days.

Treatment

There is no specific antiviral treatment for dengue. Care focuses on managing symptoms and supporting the body's recovery. Older adults may need closer monitoring.

Self-care at home

• Get plenty of rest
• Drink plenty of fluids (water, oral rehydration solutions)
• Use acetaminophen (paracetamol) for fever and pain. Avoid NSAIDs like ibuprofen and aspirin, as they can increase bleeding risk.

Medical treatments

In a hospital, doctors may give intravenous fluids and monitor blood counts to prevent complications. Older adults may require more intensive support.

Living with this condition

During recovery, get plenty of rest and avoid strenuous activity until you feel better.

Lifestyle tips

• Stay hydrated
• Use mosquito repellent and nets to avoid further bites
• Ask for help with daily tasks if needed

Diet and exercise

Eat small, nutritious meals if you have appetite loss. Slowly increase activity as tolerated.

Mental health and emotional wellbeing

Illness can be frightening and recovery may be slow. It is normal to feel frustrated or anxious. Talk to family or a counselor if needed.

Prevention

Yes, by avoiding mosquito bites. Use insect repellent, wear long sleeves and pants, use mosquito nets, and remove standing water around your home.

Vaccines

A dengue vaccine exists but is not recommended for everyone. Talk to your doctor about whether it is suitable for you, especially if you are older.

Complications

If left untreated

• Severe dengue can lead to dengue hemorrhagic fever or dengue shock syndrome, which can be life-threatening.
• In older adults, complications like organ failure or severe bleeding are more common.

Long-term outlook

With proper care, most people recover from dengue. Recovery may take longer in older adults, but many regain full health. Early medical attention and supportive care greatly reduce risks.

Find support

International organisations

• World Health Organization (WHO)

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