The Bahamas has year-round mosquito activity, with peak risk during the wet season from May through November. The low-lying islands provide extensive standing water breeding habitat after rainfall. Nassau and New Providence, along with the more populated Family Islands, carry the highest risk.
Dengue fever is the primary concern, with low-level activity and periodic small outbreaks. The Bahamas has no malaria transmission. The archipelagic nature of the country means risk can vary significantly between islands.
Aedes aegypti is the dominant vector in populated areas. Sea breezes and salt-water environments limit breeding on some outer islands, but freshwater collection points in urban areas support mosquito populations.
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Explore mosquito risk briefings for other destinations in Central America & Caribbean.
Disease presence data is sourced from WHO, CDC, ECDC, and OpenDengue. This is not medical advice — consult a travel health professional before your trip.