Yellow Fever - Risks

If you've traveled to a region at risk for yellow fever, did you get vaccinated beforehand? Discuss your experience.

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What areas are high risk for contracting yellow fever?

Yellow fever is endemic in tropical and subtropical regions of Africa and South America, though an estimated 90% of the cases reported occur in Africa. Most of the cases on the African continent occur in unvaccinated individuals who inhabit the sub-Saharan region. Though no cases of yellow fever outbreaks have ever been reported in Asia, this area remains a theoretical risk because the mosquitoes responsible for transmission, as well as the susceptible primates, are found there.

Picture of countries where yellow fever is present
Countries where yellow fever is present
Angola Guyana
Argentina Kenya
Benin Liberia
Bolivia Mali
Brazil Mauritania
Burkina Faso Niger
Burundi Nigeria
Cameroon Panama
Central African Republic Paraguay
Chad Peru
Congo Rwanda
Congo, DRC Sao Tome & Principe
Colombia Senegal
Cote d'Ivoire (Ivory Coast) Sierra Leone
Ecuador Somalia
Equatorial Guinea Sudan
Ethiopia Suriname
French Guiana Tanzania
The Gambia Trinidad & Tobago
Gabon Togo
Ghana Uganda
Guinea Venezuela
Guinea-Bissau
Source: CDC

Several factors determine an individual's risk of acquiring yellow fever during travel, including the area of travel, season, immunization status, duration of exposure, activities during travel, and the local rate of virus transmission.

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