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Dengue Fever

Dengue fever is a viral infection that causes a severe flu-like illness. It is commonly found in more than 100 countries worldwide and can occur in both rural and urban areas. About half of the world’s population is thought to live in areas with a risk of dengue fever.

Symptoms

Fever, intense headache, eye pain, joint pains and a rash – although about 75% of infections are free of symptoms

How do you catch dengue fever?
Dengue fever is transmitted by a mosquito that mainly bites during the daytime.

Incubation period
usually 4 – 7 days

Diagnosis
Diagnosis is usually based on the symptoms and confirmed by blood tests.

Prevention
Dengue fever is prevented by avoiding mosquito bites, through use of an effective insect repellent and wearing long, loose-fitting clothing. A course of Dengue Fever vaccinations can be considered by travellers who have experienced a confirmed Dengue Fever infection in the past.

Treatment
There is no cure, so treatment consists of nursing care, pain killers and management of any complications.

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Vaccination options

 

Live vaccine, not suitable for everyone (please discuss with a travel nurse).

 

Level of protection: approximated 82%

 

Protection duration: The need for a booster has not yet been established.

 

How is it given: 2 injections usually given at least 3 months apart.

 

Ideally start: 3 months before travel.

 

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Did you know?

  • Most infections occur in SE Aisa, South and Central America, Mexico, Africa, India, Hawaii and the Pacific.
  • Severe cases can be fatal - but this is very rare in travellers
  • There are 4 types of dengue fever; having had one of these can increase the risk of developing severe dengue if infected with another type.
  • The Dengue Fever vaccination is not suitable for everyone, depending on age and medical history. There may be instances where more than one appointment is required to assess whether a a vaccine can be offered.