How long can it take for dengue fever to pass?

Two weeks: Fever and most major symptoms of uncomplicated (i.e. Non-hemorrhagic) dengue will usually resolved within two weeks of onset of illness. Fatigue may persist for some days or weeks afterwards as the body recuperates from the infection.

Depends on Type: Most often dengue acute sx last 7 to10 days. Usually there is full recovery within a month. If you had dengue hemorrhagic fever or dengue shock syndrome recovery can be longer depending on complications.