The Identification of Dengue Virus Using PCR

  • Kouichi Morita
Part of the Methods in Molecular Biology™ book series (MIMB, volume 50)


Dengue virus is a member of the family Flaviviridae with a single-stranded positive sense RNA genome. The virus particle consists of a lipid bilayer with envelope (E) and membrane (M) proteins surrounding a spherical nucleocapsid composed of a genome RNA and capsid (C) proteins. The virion structure is easily destroyed by treatment with non-ionic detergent (see Fig. 1) or low osmotic shock. Four antigenically related but distinct serotypes of dengue virus (DEN1, DEN2, DEN3, and DEN4) are circulating in tropical countries and cause dengue fever and dengue hemorrhagic fever, both of which are highly prevalent.
Fig. 1.

The effect of Nonidet P-40 treatment on dengue virus morphology. Dengue type-2 virus was purified by linear sucrose density gradient ultracentrifugation, negatively stained, and observed by electronmicroscopy. Purified virions were treated with NP-40 for 1 min.


Dengue Virus Dengue Fever Dengue Hemorrhagic Fever Sodium Cholate Polymerase Chain Reaction Procedure 
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Copyright information

© Humana Press Inc. 1996

Authors and Affiliations

  • Kouichi Morita
    • 1
  1. 1.Department of Virology, Institute of Tropical MedicineNagasaki UniversityNagasakiJapan

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