A: Dengue fever is a viral illness caused by the 4 strains of the dengue virus, all transmitted by mosquito bites in tropical areas around the world. This means that, in theory, a person can get dengue fever 4 times. The risk of getting a more serious illness with subsequent infections is a feature of the virus, but the risk of getting a serious complication like dengue-haemorrhagic fever (DHF) at a second or third infection is about 1-2 % of cases. So overall if you are careful about protecting against mosquito bites, then there is no real reason to not go back to Bali, or other tropical zones.
Travel Doctor clinics provide specialist travel health advice and plenty of suggestions and products to reduce mosquito exposure.
Disclaimer: Information provided in this health column is of a general nature & should not replace specific advice from your own personal Travel doctor-TMVC consultation.
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