Peru has highly variable mosquito risk by altitude and region. The Amazon basin and eastern lowlands have year-round activity, peaking during the wet season from December through May. The northern coast and Tumbes region also carry significant risk. Lima and highland cities above 2,000 meters have minimal mosquito-borne disease transmission.
Dengue fever is the primary concern in lowland and coastal areas. Malaria (P. falciparum and P. vivax) is concentrated in the Amazon departments of Loreto and Ucayali. Yellow fever is a risk in the jungle regions, and vaccination is required for entry to some areas. Chikungunya and Zika are also present.
Aedes aegypti transmits dengue in urban lowland areas. Anopheles darlingi is the primary malaria vector in the Amazon basin. The extreme elevation gradient means risk varies dramatically over short distances.
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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.