UKHSA alert as holidaymakers return with nasty infection

The UK Health Security Agency (UKHSA) has issued a warning to holidaymakers heading to particular destinations after dozens of Brits have returned home carrying a grim infection.

Initial symptoms typically include a high fever and excruciating joint pain. Many patients also suffer from muscle aches, headaches, light sensitivity, and characteristic skin rashes.

While the majority of people with the viral infection make a complete recovery within one to two weeks, the joint discomfort can linger for months or even years in certain cases, with up to 12% of patients still experiencing pain three years after contracting the virus.

In a fresh post on X, formerly Twitter, UKHSA said: “Lucky enough to be planning a long-haul holiday this winter? Chikungunya is a viral infection carried by mosquitoes, and is present in countries including Thailand, Brazil & India.”

Further information on the UKHSA website reveals there were 112 confirmed and probable cases of chikungunya reported amongst travellers returning to England, Wales and Northern Ireland in 2024. This marks a rise of almost 150% from 2023.

Chikungunya is spread through the bite of infected Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus species.

Mosquitoes breed in natural and human-made sources of standing and stagnant water, such as blocked gutters and drains, litter, tarpaulins, open buckets, bins, plant pots and discarded items like tyres, and these are a risk factor for transmission if left around human habitation.

Unlike malaria-transmitting mosquitoes that come out at night, these insects remain most active throughout the day, particularly during dawn and dusk hours. This creates challenges for holidaymakers taking part in daytime activities.

Severe complications occur, though rarely, affecting roughly one in every 1,000 cases. Certain groups have higher risks, such as newborn babies, older adults, and people with pre-existing medical conditions.

Rare complications impacting the eyes, nervous system, heart, and digestive system have been reported.

There is no antiviral remedy for chikungunya, making prevention essential for holidaymakers. The most successful strategy involves thorough mosquito bite prevention tactics.

This includes applying repellents containing DEET or picardin to uncovered skin, and donning light-coloured, loose-fitting garments that protect arms and legs.

Application of insect repellents should follow the manufacturer’s guidelines, with particular attention required for infants and small children.

Holidaymakers should also be aware that these mosquitoes reproduce in stagnant water surrounding human dwellings. Steering clear of locations with natural and man-made water receptacles can help diminish exposure threats.

Unlike certain mosquito varieties that favour countryside locations, Aedes mosquitoes flourish in city environments and frequently bite inside buildings, making hotel room safeguards equally as important.