Tropical virus: Dengue fever is a common tropical viral infection occurring after a single mosquito bite.There are >100 countries where dengue is active.Most initial infections are mild while repeat infections can be severe or deadly. Avoiding mosquito bites is the best way to prevent dengue fever.There is no vaccine.Symptoms resemble flu & may include a rash.Dengue may begin upto 14 days after return from travel.
Answered 12/7/2015
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