From the UK Foreign and Commonwealth Office

Latest update: Health section – as of August 2017, there has been a significant increase in the number of dengue fever cases; the majority of cases are in southern Vietnam, but there has been a sharp increase in the number of cases in the north, especially Hanoi; you should follow the advice of the National Travel Health Network and Centre.

from Travel Advice Summary, which can be found at:

From Travel Health Pro


  • Dengue is a viral disease transmitted by mosquitoes which predominantly feed between dawn and dusk.
  • Symptoms of dengue can include high fever, muscle and joint pains, headache, nausea, vomiting and rash.
  • Most infections are self-limiting with improvement in symptoms and recovery occurring 3 to 4 days after the onset of the rash.
  • Severe dengue (also known as dengue haemorrhagic fever) is a more serious form of the disease which is rare in travellers.
  • The number of reported cases of dengue in UK travellers has been increasing; most cases are acquired in Asia, the Americas and the Caribbean.
  • There is currently no vaccine available in Europe to prevent dengue. Travellers should avoid mosquito bites.

Please click here to read more. The website is really helpful and includes advice on avoidance of mosquito bites – the only way to avoid dengue fever.

From the NHS

Symptoms of dengue

Symptoms of dengue usually develop suddenly 4 to 10 days after becoming infected.

Symptoms can include:

  • a high temperature (fever), which can reach 40C (104F) or higher
  • a severe headache
  • pain behind the eyes
  • muscle andjoint pain
  • feeling or being sick
  • a widespread red rash
  • loss of appetite

The symptoms normally pass in about a week, although you may feel tired and slightly unwell for several weeks afterwards.

In rare cases severe dengue can develop after the initial symptoms.

When to get medical advice

See your GP or call NHS 111 if you develop a fever or flu-like symptoms within two weeks of returning from an area where the dengue virus is found.

Remember to tell them where you’ve been travelling.

Go to a local doctor or hospital if you develop symptoms while travelling or living in an area where dengue is common. 

There’s little a doctor can do to help you recover, but it’s important to get a proper diagnosis in case there’s another cause of your symptoms.

You may need a blood test to confirm that you have dengue.

Please click here to read more.

Like what you read? Sign up here for our free Daily Updates. We also send out a Weekly K+R Update, bundling together all the K+R news of the week. (Same form – options at the end.)
 Other ways to stay up to date:

Follow and subscribe!

Follow us on Twitter, LinkedIn, and Facebook. You can also subscribe to our free newsletters - the Daily Updates and the Weekly K+R Update.