Unprecedented Rise in Dengue Cases Among UK Travelers

An unprecedented number of dengue cases were reported in people returning to Britain from abroad last year, official data reveals. Holidaymakers have since been urged to “take precautions” when visiting countries where the sometimes-lethal infection is rife.

Dengue symptoms typically hit four to 10 days after a mosquito bite
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Record 43% Increase in Dengue Cases

Cases of the debilitating mosquito-borne disease, often referred to as ‘breakbone fever’, in returning travellers soared to a record 904 in the UK in 2024, according to new figures from the UK Health Security Agency (UKHSA). This marks a 43 per cent rise from 631 the previous year and represents the highest number of cases recorded in the UK since 2009.

Most cases were linked to travel to southern and south-eastern Asia but cases have also been reportedly on the rise in European locations like Spain and Italy.

“Simple steps, such as using insect repellent, covering exposed skin, and sleeping under insecticide-treated bed nets, can effectively reduce the risk of mosquito-borne infections,” said Dr Philip Veal, Consultant in Public Health at the UKHSA.

“Before you travel, check the TravelHealthPro website for the latest health advice on your destination, including any recommended vaccinations.”

He added: “Even if you’ve been to a country before, remember that you don’t have the same level of protection against infections as permanent residents and are still at risk.”

Understanding Dengue Symptoms and Risks

Dengue strikes with a sudden fever, severe headache, pain in the eyes, joints, and muscles, along with nausea and vomiting. Sometimes called ‘breakbone fever,’ it earned the name due to the excruciating pain that made sufferers feel as though their bones were breaking.

Symptoms typically hit four to 10 days after a mosquito bite, which means holidaymakers often fall ill soon after returning to Britain. While most people infected with dengue recover within one to two weeks, some can develop a much more serious form of the disease.

Key Points:

• Recorded cases of dengue among UK travelers increased by 43% in 2024
• Simple precautions like using insect repellent can reduce the risk of mosquito-borne infections
• Severe dengue is a life-threatening condition affecting about five per cent of cases
• Prevention is key as there is currently no vaccine or specific treatment for dengue