Flaviviruses
Group IV: (+)sense RNA Viruses

Family

Genus

Type Species

Hosts

Flaviviridae

Flavivirus

Yellow fever virus

Vertebrates

Pestivirus

Bovine diarrhea virus 1

Vertebrates

Hepacivirus

Hepatitis C virus

Vertebrates

Morphology
Enveloped, spherical viruses, 40-60nm diameter. Capsid: Symmetry indistinct, tow proteins: nucleocapsid ('C') and matrix ('M'). Envelope: 1 glycoprotein ('E').
Genome
Single-stranded, (+)sense RNA, ~10.5kb. The genome has a 5' cap but is not polyadenylated at the 3' end.