The
dengue virus (DENV) is the cause of
dengue fever. It is a
mosquito-borne single positive-stranded
RNA virus of the family
Flaviviridae; genus
Flavivirus. Five
serotypes of the virus have been found, all of which can cause the full spectrum of disease. Nevertheless, scientists are finding their understanding of dengue virus may be simplistic, as rather than distinct antigenic groups in space and time there appears to be a
continuum. This same study identified 47 strains of dengue virus. Additionally, coinfection with and lack of rapid tests for
zika virus and
chikungunya complicate matters in real world infections.