Whether you’re heading off on a backpacking adventure through Southeast Asia or planning a tropical getaway to the Caribbean, protecting your health should be part of the itinerary. At G.M. Graham Pharmacies, our travel health experts regularly advise patients on how to stay safe in countries where mosquito-borne illnesses like dengue fever are a risk.
A newer addition to travel vaccines in the UK is the dengue fever shot — a preventive measure that could offer peace of mind when visiting higher-risk areas. But is it right for you?
Here’s what you need to know before you pack your bags.
What is Dengue Fever and How is it Spread?
Dengue fever is a viral infection spread by Aedes mosquitoes, which tend to bite during the day. It’s most common in tropical and subtropical regions — especially parts of Asia, Central and South America, Africa, and the Caribbean.
Symptoms can appear four to ten days after a bite and may include:
- High fever
- Severe headache
- Pain behind the eyes
- Muscle and joint pain
- Nausea or vomiting
- Skin rash
While many people recover without complications, severe dengue (sometimes called dengue haemorrhagic fever) can lead to hospitalisation and, in rare cases, be life-threatening.
There’s no specific treatment for dengue — just rest, fluids, and symptom relief. That’s why prevention is so important.
Who Should Consider the Dengue Fever Shot?
The dengue vaccine (Qdenga) is now available in the UK for travellers aged 4 and over who are planning to visit countries with a high risk of dengue transmission.
It’s especially worth considering if:
- You’ll be spending time in rural or heavily affected areas
- You’re staying for a prolonged period
- You’ve had dengue before (repeat infections increase the risk of severe illness)
- You’re travelling during rainy season when mosquitoes are more active
The vaccine is given in two doses, ideally spaced three months apart — so it’s best to book well in advance of your trip. If you’re unsure whether the dengue fever shot is recommended for your destination, our team can advise during your travel health consultation.
Where Are Dengue Fever Risk Areas?
Dengue is widespread in many parts of the world, particularly in:
- Southeast Asia (Thailand, Indonesia, Vietnam, the Philippines)
- South and Central America (Brazil, Colombia, Mexico)
- The Caribbean (Puerto Rico, Dominican Republic, Jamaica)
- Parts of Africa and the Western Pacific
Some popular holiday destinations have recently reported increased dengue activity — including outbreaks in European hotspots like Madeira and southern France.
If your travel plans include any of these regions, it’s worth checking the latest travel health advice or speaking with one of our pharmacists for tailored guidance.
Does the Dengue Fever Shot Guarantee Full Protection?
Like most vaccines, the dengue fever shot isn’t 100% effective — but it does offer a strong level of protection. Qdenga, the licensed vaccine in the UK, has been shown to significantly reduce the risk of dengue infection and severe complications, especially for people who’ve had the virus before.
Even if you’ve had both doses, it’s still important to practise bite prevention. Mosquitoes can also spread other illnesses, including Zika and chikungunya.
We recommend packing:
- Insect repellent containing DEET
- Long-sleeved clothing and trousers
- Mosquito nets for sleeping
- Plug-in repellents or coils for hotel rooms
Final Tips Before You Travel
- Book your travel health appointment at least 6–8 weeks before departure
- Bring details of past vaccinations if available
- Stick to mosquito bite prevention, even after vaccination
- Keep hydrated and seek medical help abroad if you develop symptoms
How to Book the Dengue Fever Shot
At G.M. Graham Pharmacies, our travel health team is on hand to help you prepare for a safe and healthy trip. We can assess your itinerary, personal risk factors, and vaccine history to decide whether the dengue fever shot is right for you. If you have any concerns or questions, you can raise them to us at your appointment too.
If recommended, we’ll schedule your doses to ensure full protection before you fly. It’s a simple process, and we’ll also advise on other recommended travel vaccinations such as hepatitis A, typhoid, and tetanus depending on your destination.
Visit Us for Travel Health Peace of Mind
The dengue fever shot could make all the difference when it comes to avoiding illness abroad — especially in destinations where dengue is on the rise. Whether you’re travelling for work, leisure or visiting family overseas, we’re here to make sure you leave the UK feeling prepared and protected.
Pop into your local G.M. Graham Pharmacy or contact us today to arrange your travel health consultation. Safe travels start here.
