Dengue

What is Dengue?

Dengue is a viral infection spread by mosquitoes in tropical and subtropical regions. It can cause severe flu-like symptoms and, in some cases, lead to serious complications such as internal bleeding or organ damage.

How is it Spread?

• Through the bite of an infected Aedes mosquito
• Mosquitoes bite mainly during daylight hours
• Not spread person to person

Who is at Risk?

• Travellers to parts of Asia, the Caribbean, South/Central America, and Africa
• People staying in urban or semi-urban areas where dengue is common
• Individuals visiting during or just after the rainy season

Signs and Symptoms:

• High fever, severe headache, joint and muscle pain (“breakbone fever”)
• Pain behind the eyes, nausea, rash
• In rare cases: bleeding, low blood pressure, and shock (severe dengue)

When to Consider Vaccination:

• If travelling to high-risk areas, especially on repeat visits
• If aged 4–60 and have had dengue before (vaccine is currently recommended only for people with past infection)
• If visiting areas with frequent outbreaks

The Vaccine:

• Dengue vaccine is available but only recommended in specific situations
• Requires a history of previous dengue infection
• Not suitable for everyone — consult your travel health advisor