Is flavivirus DNA or RNA?
The Flaviviridae are a family of positive, single-stranded, enveloped RNA viruses. They are found in arthropods, (primarily ticks and mosquitoes), and can occasionally infect humans. Members of this family belong to a single genus, Flavivirus, and cause widespread morbidity and mortality throughout the world.
Is flavivirus a DNA virus?
Flavivirus is a genus of positive-strand RNA viruses in the family Flaviviridae.
What is flavivirus made of?
flavivirus, any virus belonging to the family Flaviviridae. Flaviviruses have enveloped and spherical virions (virus particles) that are between 40 and 60 nm (1 nm = 10−9 metre) in diameter. The flavivirus genome consists of nonsegmented single-stranded positive-sense RNA (ribonucleic acid).
Which one is a flavivirus?
Flavivirus: One of a family of viruses transmitted by mosquitos and ticks that cause some important diseases, including dengue, yellow fever, tick-borne encephalitis, and West Nile fever. Flaviviruses have single-stranded RNA as their genetic material.
Is Flavivirus a retrovirus?
Both HCV and HIV are RNA viruses that are about 9 kilobase (kb) long. HCV is a flavivirus and HIV is a retrovirus. Both viruses are transmitted through blood products and through sexual activity.
Is Zika a Flavivirus?
Zika virus is a single-stranded RNA virus of the Flaviviridae family, genus Flavivirus. Zika virus is transmitted to humans primarily through the bite of an infected Aedes species mosquito (Ae.
What does Flavivirus look like?
The capsid of viruses in this family are icosahedral shaped and around the viral capsid a spherical shaped envelope is present. The capsids are approximately 40-50 nanometers in diameter and are composed of a single type of capsid protein. Unlike cellular mRNA, the genome of Flavivirus lacks a poly-A tail.
What is the function of nucleic acid in a virus?
Nucleic acid is an important class of macromolecules found in all cells and viruses. The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins.
What is the function of capsid in virus?
The essential functions of the capsid are to protect the functional integrity of the viral RNA when the virion is outside the host cell and to initiate the infectious process when a receptor on a suitable host cell is encountered.
Why is it called Flaviviridae?
They are primarily spread through arthropod vectors (mainly ticks and mosquitoes). The family gets its name from the yellow fever virus; flavus is Latin for “yellow”, and yellow fever in turn was named because of its propensity to cause jaundice in victims.
What is the most common Flavivirus infection in the United States?
The 4 most common species causing human disease include the Japanese encephalitis virus (JEV), Murray Valley encephalitis virus (MVEV), St. Louis encephalitis virus (SLEV), and the West Nile virus (WNV). The latter 2 viruses are the only known Flaviviridae that are endemic in the continental United States.