Yellow Fever is currently found in which regions?

Yellow Fever is currently found in which regions?

• A. Africa and South America
• B. Asia
• C. Europe and Asia
• D. Australia and Africa

Answer: (A)

Yellow fever persists where competent mosquito vectors are present in tropical environments that support transmission cycles. In Africa and in parts of South America, the virus circulates in these cycles—urban cycles with humans and forest cycles with non-human primates—so transmission is established and ongoing. Asia lacks sustained endemic transmission, and Europe and Australia have no established yellow fever transmission. Therefore, the regions where yellow fever is currently found are Africa and South America.

Yellow fever persists where competent mosquito vectors are present in tropical environments that support transmission cycles. In Africa and in parts of South America, the virus circulates in these cycles—urban cycles with humans and forest cycles with non-human primates—so transmission is established and ongoing. Asia lacks sustained endemic transmission, and Europe and Australia have no established yellow fever transmission. Therefore, the regions where yellow fever is currently found are Africa and South America.