Dengue is a year-round risk in many parts of the world, with outbreaks commonly occurring every 2-5 years. Travelers to risk areas should prevent mosquito bites. Country List : Colombia, Vietnam, Maldives, Bolivia, Cambodia, Kenya, Malaysia, Sri Lanka, Bangladesh, Costa Rica, Marshall Islands, Vanuatu Country List : Colombia, Vietnam, Maldives, Bolivia, Cambodia, Kenya, Malaysia, Sri Lanka, Bangladesh, Costa Rica, Marshall Islands, Vanuatu
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