The UK Health Security Agency (UKHSA) has revealed that travel-associated mosquito-borne infections are returning to pre-pandemic levels. 

Earlier this year, cases were confirmed in parts of the UK in individuals who had recently been abroad. This trend looks set to continue as we approach the holiday season.

Therefore, the UK government has warned about diseases such as dengue and malaria, which can cause severe disease.

They also stressed the need for travellers to take precautions to reduce health risks while abroad.

How do you prevent mosquito bites?

Avoid insect bites at all times including during the day. It is important to:

  • cover up
  • use repellents
  • use nets

Mosquitoes that spread chikungunya, dengue, West Nile virus, yellow fever and Zika mainly bite during the day and at dusk.

Mosquitoes that spread malaria mainly bite in the evening and at night.

Repellent

It is important to use an insect repellent day and night, indoors and outdoors, on any exposed skin.

A product with 50% DEET is recommended as a first choice. If DEET is not tolerated, use of a repellent containing the highest strength formulation available of either icaridin (20%), eucalyptus citriodora oil, hydrated, cyclised or 3-ethlyaminopropionate is recommended.

  • apply insect repellent according to instructions on the label – rub repellent into skin, making sure all skin is covered
  • reapply insect repellent frequently, especially in hot countries and after swimming
  • apply repellent after sunscreen (use 30 to 50 SPF sunscreen as DEET can make sunscreen less effective)
  • 50% DEET is safe for those pregnant and breastfeeding and for babies older than 2 months
  • get advice before you travel from your doctor or pharmacist if your baby is aged under 2 months
  • take insect repellents with you – in case of shortages at your destination

Mosquito-borne infections on the rise:

Dr Philip Veal, Consultant in Public Health at the UK Health Security Agency, said:  "As travel has increased following the lifting of travel restrictions during the pandemic, so have serious mosquito-borne infections.

"There are simple steps that people can take to reduce the risk of infections such as malaria, dengue and Zika. Prevent mosquito bites by using insect repellent, covering exposed skin and sleeping under a treated bed net.

"Plan ahead and visit the TravelHealthPro website to look up your destination and the latest health information and advice. Even if you have visited or lived in a country before, you will not have the same protection against infections as local people and are still at risk."

Recommended reading:

How to keep mosquitoes away with these 5 natural remedies

UK could be hit with deadly mosquito disease amid climate change

7 pests to look out for in your garden and home this summer

Dr Dipti Patel, Director of the National Travel Health Network and Centre said:  "If you are making plans to travel abroad this year, please take a moment to prioritise your health and plan ahead.

"Check the relevant country information pages on our website, TravelHealthPro, and ideally speak to your GP or a travel health clinic 4-6 weeks ahead of travelling to ensure you have had all the necessary vaccinations and advice you need to ensure your trip is a happy and healthy one.

"When you return to the UK, if you feel unwell, seek medical attention and ensure you inform your healthcare provider that you have been travelling recently. "