The Dominican Republic has year-round mosquito activity, with peak risk during the rainy seasons from May through June and September through November. The greater Santo Domingo area, the southeast coast, and rural agricultural areas carry the highest risk. Resort areas maintain better vector control but are not risk-free.
Dengue fever is the primary concern, with moderate to high activity reported annually. Malaria (P. falciparum and P. vivax) persists in some western provinces and near the Haitian border. Chikungunya, Zika, West Nile virus, and lymphatic filariasis are also present.
Aedes aegypti is the dominant vector in urban and tourist areas. Anopheles species transmit malaria in western rural areas. Travelers should use protection during both day and night hours.
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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.