What is Dengue and How is it Transmitted?
Dengue is caused by the dengue virus, which is transmitted through the bite of infected Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus. These mosquitoes are most active during the day, especially during the early morning and late afternoon.
The virus has four distinct strains, meaning you can be infected multiple times. Repeat infections with different strains increase the risk of severe dengue, a dangerous form of the disease that can lead to haemorrhagic fever, organ failure, and even death.
Why Prevent Dengue Before Travelling?
While many dengue infections result in mild symptoms, some travellers experience severe symptoms such as high fever, headaches, joint and muscle pain, rash, and nausea. In some cases, the disease can progress to severe dengue, which can be fatal if not treated promptly.
Preventing mosquito bites is the primary way to protect yourself from dengue. For certain travellers, the dengue vaccine may be recommended, particularly if they are heading to areas with active outbreaks or have had previous dengue infections.
Who is at Risk of Dengue?
Travellers visiting tropical or subtropical areas are at the highest risk of contracting dengue. Regions with frequent outbreaks include:
South America
The Caribbean
Travellers who spend time outdoors, particularly in rural or semi-urban areas, and those staying in areas without air conditioning or mosquito nets are at increased risk. Additionally, travellers who have had a previous dengue infection are more susceptible to severe forms of the disease.
How to Prevent Dengue
The best way to prevent dengue is through mosquito bite prevention. Here are key steps to take:
Use insect repellent: Apply a repellent containing DEET, picaridin, or other recommended ingredients, especially during the day.
Wear protective clothing: Cover exposed skin by wearing long sleeves, trousers, and socks.
Sleep under mosquito nets: If staying in accommodation without air conditioning, use nets to protect yourself at night.
Stay in air-conditioned rooms: If possible, choose accommodation with air conditioning and screens on doors and windows to reduce exposure to mosquitoes.
Vaccine Information
There is a dengue vaccine, Qdenga®, licensed in the UK, available for individuals aged 4 years and older who have had a previous dengue infection and are travelling to areas with high risk or ongoing outbreaks. The vaccine is especially useful for those who are repeatedly exposed to dengue through work or extended stays in endemic regions.
The vaccine is not recommended for those who are immunosuppressed, pregnant, or breastfeeding.
Booking Your Dengue Consultation at Our Birmingham Clinic
Our Birmingham travel clinic offers expert advice on dengue prevention, including vaccination for those who meet the criteria. We provide detailed guidance on bite prevention measures and ensure you’re prepared for your trip with the right tools and knowledge to stay safe.
Book your dengue consultation today by contacting us online or by phone. Protect yourself and your loved ones from this potentially serious disease before travelling.
FAQ
Do I need the dengue vaccine if I’m only visiting for a short time?
The vaccine is only recommended for individuals who have had a previous dengue infection or those spending extended periods in high-risk areas. Even for short trips, it’s important to follow bite prevention methods.
How long does the dengue vaccine last?
The Qdenga® vaccine provides protection for travellers heading to dengue-risk areas, but more research is needed to determine the duration of immunity. Speak with a healthcare provider for personalised advice.
Can children receive the dengue vaccine?
Yes, the vaccine is available for children aged 4 and older, especially those with previous dengue infections or those travelling to high-risk areas.
What are the side effects of the dengue vaccine?
Common side effects include mild pain at the injection site, headache, and fatigue. Serious side effects are rare, but it’s important to consult with a healthcare provider before vaccination.
How do I prevent dengue without a vaccine?
Prevention relies heavily on avoiding mosquito bites. Use insect repellent, wear protective clothing, sleep under nets, and stay in air-conditioned accommodation when possible.
Dengue is a serious mosquito-borne disease, but with the right precautions, it can be prevented. Whether through bite prevention methods or vaccination, our Birmingham travel clinic can help you stay safe. Book your appointment today for personalised dengue prevention advice.