Page "Yellow fever" Paragraph 17

Yellow fever is a clinical diagnosis, which often relies on the whereabouts of the diseased person during the incubation time.

Mild courses of the disease can only be confirmed virologically.

Since mild courses of yellow fever can also contribute significantly to regional outbreaks, every suspected case of yellow fever ( involving symptoms of fever, pain, nausea and vomiting six to ten days after leaving the affected area ) has to be treated seriously.