Guyana has year-round mosquito activity, with peak risk during the two rainy seasons: May through August and November through January. The coastal lowlands, Georgetown, and the interior rainforest carry the highest risk. The Rupununi savannah and mining areas in the hinterland have significant malaria exposure.
Dengue fever is a primary concern in coastal and urban areas. Malaria (P. falciparum and P. vivax) remains endemic in interior and hinterland regions, particularly in mining communities. Chikungunya, Zika, yellow fever, and lymphatic filariasis are also present.
Aedes aegypti drives dengue transmission in coastal urban areas. Anopheles darlingi is the main malaria vector in the forested interior. Travelers to the hinterland should take antimalarial prophylaxis and use bed nets.
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Disease presence data is sourced from WHO, CDC, ECDC, and OpenDengue. This is not medical advice — consult a travel health professional before your trip.