6. High Fever
According to the WHO fact sheet, even though WNV is an asymptomatic condition with about 80% showing no symptoms; the remaining 20% can portray severe fever amongst other symptoms. It goes on to state that the West Nile fever is usually accompanied by tiredness, nausea, extreme fatigue, and headaches.
In other cases, the high fever comes out as flu and mild, but it has the potential of becoming extreme. This is when the fever gets to be associated with influenza because of the flu-like symptoms such as headaches, fatigue, and muscle aches. Patients should be treated for high fever because it can rapidly worsen and cause serious issues.
However, fever can also be caused by other health conditions that pop up as secondary issues triggered by the WNV. If this is the case, it would be important to track and treat the fever in order to curb the development of other illnesses.