What is the duration of classic dengue fever?

Updated: May 03, 2019
  • Author: Darvin Scott Smith, MD, MSc, DTM&H; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Dengue viral infections frequently are not apparent. In most cases, especially in children younger than 15 years, the patient is asymptomatic or has a mild undifferentiated febrile illness lasting 5-7 days. Classic dengue fever primarily occurs in nonimmune, nonindigenous adults and children and is typically self-limiting. Recovery is usually complete by 7-10 days. Severe dengue (dengue hemorrhagic fever/dengue shock syndrome) usually occur around the third to seventh day of illness during a second dengue infection in persons with preexisting actively or passively (maternally) acquired immunity to a heterologous dengue virus serotype.


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