Dengue fever is on the rise across many parts of the world, making it more important than ever to consider vaccination before travelling. Caused by the dengue virus and transmitted by mosquito bites, the illness can range from a mild flu-like condition to severe dengue, which may lead to hospitalisation and serious complications.
At Mendus Pharmacy and travel clinic, we’ve seen growing demand for dengue prevention advice, particularly since the recent introduction of the dengue fever vaccine UK travellers can now access privately. If you’re heading to any of the countries below, it’s worth booking a consultation at our travel clinic to discuss whether the vaccine is right for you.
Here are ten dengue hotspots where extra protection may be worth considering.
1. Thailand
Thailand is one of the most popular long-haul holiday destinations for UK travellers, especially during the winter months. Unfortunately, it’s also one of the countries with a consistently high number of dengue cases, particularly during the rainy season between May and October. Regions like Bangkok, Chiang Mai, and the islands are all affected. The risk increases for backpackers and those staying in rural or local accommodations.
2. Brazil
As one of the largest countries in South America, Brazil sees thousands of dengue cases every year. Urban areas such as Rio de Janeiro, São Paulo, and Salvador have experienced major outbreaks in recent years. The combination of a tropical climate and dense population makes mosquito-borne illnesses like dengue a serious concern for both tourists and locals alike.
3. India
India has a long-standing problem with dengue fever, particularly during the monsoon season from June to September. The virus is widespread in both urban and rural areas, with states like Maharashtra, Delhi, West Bengal, and Uttar Pradesh reporting large numbers of infections annually. Whether you’re travelling for business, leisure, or family visits, dengue prevention should be on your radar.
4. Indonesia
Indonesia, particularly Bali and Jakarta, is another high-risk destination where dengue is common throughout the year. The virus is endemic, and due to the warm, humid climate, mosquito activity is constant. Many UK tourists visit Bali without realising how prevalent dengue is on the island. Cases can spike dramatically following periods of heavy rain.
5. Philippines
The Philippines frequently sees dengue outbreaks, especially during the rainy season from June to November. All regions are affected, including popular travel spots such as Manila, Palawan, and Cebu. With the country experiencing cyclical epidemics every few years, travellers should be especially cautious when planning trips here.
6. Vietnam
Dengue fever is widespread across Vietnam, from the northern areas around Hanoi to the southern parts including Ho Chi Minh City and the Mekong Delta. The virus peaks during the rainy season between May and November, though cases occur all year round. Given Vietnam’s popularity with adventure travellers and backpackers, taking preventative measures, including vaccination, is advisable.
7. Sri Lanka
Sri Lanka has made headlines in the past for large-scale dengue outbreaks. Areas such as Colombo, Kandy, and Galle are among those affected, and the virus remains a year-round risk. If you’re heading to the island for an extended stay, humanitarian work, or visiting relatives, it’s worth discussing dengue protection with a travel health specialist.
8. Malaysia
Malaysia, particularly Kuala Lumpur and other urban centres, is known for seasonal dengue surges. The risk is high in both cities and surrounding countryside, with the tropical environment offering ideal breeding conditions for mosquitoes. Travellers heading to jungle areas or off-the-beaten-path locations may face higher exposure.
9. Mexico
Although not often associated with dengue, Mexico—especially regions like Yucatán, Cancún, and Oaxaca—experiences regular outbreaks, particularly in summer and autumn. Dengue is becoming more common in Central American and Caribbean destinations due to changing weather patterns and increased mosquito populations.
10. Singapore
Singapore, despite being a highly developed and clean city-state, experiences recurring dengue outbreaks. The virus thrives in the tropical climate, and despite robust public health efforts, cases spike seasonally. Business travellers and holidaymakers alike should remain vigilant and consider vaccination, particularly for longer trips or repeated visits.
So, Do You Need the Dengue Fever Vaccine?
If you’re heading to any of the countries listed above, or spending extended time in tropical or subtropical areas, you may benefit from the dengue fever vaccine UK travellers can now access privately. The vaccine, known as Qdenga, is available to individuals aged 4 to 60 and offers protection against all four strains of the virus.
At Mendus Pharmacy, we offer personalised travel health consultations to help you decide if the vaccine is right for you. We’ll assess your destination, length of stay, type of travel, and any underlying health conditions. If the vaccine isn’t suitable, we’ll advise you on other ways to reduce your risk, including insect repellent, protective clothing, and accommodation tips.
Book Your Travel Consultation Today
Whether you’re planning a once-in-a-lifetime backpacking trip or a short visit to see family abroad, protecting yourself from dengue is a smart move. Visit Mendus Pharmacy for expert travel advice and access to the dengue fever vaccine UK travellers now have available. Reach out to book your appointment early, especially if you’re travelling during rainy season months when the risk is highest.
Let us help you stay protected, so you can focus on enjoying your journey.