flavivirus


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Flavivirus

 
a genus of flaviviruses of worldwide distribution, containing about 75 species in 9 serogroups. It includes the viruses that cause yellow fever, dengue, Japanese B encephalitis, Kyasanur Forest disease, St. Louis encephalitis, tick-borne encephalitis, and West Nile encephalitis. Mosquitoes are the most common vector, with some species being tick-borne and some having no known vector.

flavivirus

 [fla´vĭ-vi″rus]
any in a family of RNA viruses that includes significant causes of human disease. See Flavivirus and Hepacivirus.

Fla·vi·vi·rus

(flā'vi-vī'rŭs),
A genus in the family Flaviviridae that includes yellow fever, dengue, and St. Louis encephalitis viruses.
[L. flavus, yellow, + virus]

flavivirus

/fla·vi·vi·rus/ (fla´vĭ-vi″rus) any virus of the family Flaviviridae.

Flavivirus

/Fla·vi·vi·rus/ (fla´vĭ-vi″rus) group B arboviruses: a genus of viruses of the family Flaviviridae, many members of which cause disease in humans and animals, including the agents of yellow fever, dengue, and St. Louis and other forms of encephalitis.

flavivirus

(flā′vĭ-vī′rəs)
n. pl. flavivi·ruses
Any of a genus of RNA viruses that are transmitted by insects and ticks, including the viruses that cause yellow fever, dengue, and various types of encephalitis.

Flavivirus

a genus of a family of Flaviviridae single-stranded positive-sense ribonucleic acid viruses, including species that cause yellow fever, dengue, and St. Louis encephalitis. Most are arboviruses transmitted by mosquitoes or ticks. Also called group B arbovirus.

fla·vi·vi·rus

(flā'vi-vī-rŭs)
A genus in the family Flaviviridae that includes yellow fever, dengue, and St. Louis encephalitis viruses.
[L. flavus, yellow, + virus]

flavivirus

A member of the flavivirus genus of the Flaviviridae family. Flaviviruses are arthropod-borne (arbor) viruses and can cause encephalitic or meningitic diseases including Japanese encephalitis, West Nile virus encephalitis, St. Louis encephalitis and Murray Valley encephalitis.

Flavivirus

An arbovirus that can cause potentially serious diseases, such as dengue, yellow fever, Japanese encaphilitis, and West Nile fever.
Mentioned in: West Nile Virus

flavivirus

a virus in the family Flaviviridae.
References in periodicals archive ?
Also to our knowledge, no cases of tick-borne flavivirus infection in humans have been reported in Spain, although 1 case of tick-borne encephalitis in a person from southwestern France was considered to have been caused by an SSEV subtype virus (3,7).
Only clinical testing under well controlled conditions can determine efficacy and safety on entity including Ampligen(R) in Flavivirus infections.
To further confirm flavivirus as the causative agent of duck hemorrhagic ovaritis, we used PCR to test the isolate and clinical samples with forward primer Usu5454f (5'-ATGGATGAAGCYCATTTCAC-3') (5) and a newly designed reverse primer 5861R (5'-CCAAAGTTGGCYCCCATCTC-3').
However, a heminested RT-PCR specific for a broad range of flaviviruses (12) showed positive results for all samples (Table), indicating that a non-WNV flavivirus was present in samples from different tissues of diseased birds.
The samples were screened for the presence of flavivirus nucleic acid by reverse transcription PCR, using universal flavivirus primers MAMD (6) and CFD2 (6,7) for amplification of a partial nonstructural protein (NS) 5 sequence.
Out of 580 wild-caught mosquitoes from 124 pools tested for virus using antigen capture ELISA and an insect-bioassay (inoculation into Toxorhynchites splendens larvae and identification by IFA using Japanese encephalitis (JE) virus-specific monoclonal antibody), four flavivirus isolations were made, of which 2 (50%) were identified as JE virus, one each from Culex tritaeniorhynchus and Cx.
The first structure of a flavivirus has been determined by using a combination of cryoelectron microscopy and fitting of the known structure of glycoprotein E into the electron density map.
Several other laboratories may have detected lineage 2 only by broad-range flavivirus assays, as suggested by the observed correlation between non-WNV flavivirus detection and lineage 2 results.
Acambis is proud to assist in the rapid and accurate diagnosis of West Nile and other flavivirus diseases by donating our ChimeriVax vaccine candidates for use by public health departments.
Flavivirus infection in pregnancy has been associated with spontaneous abortion and neonatal infection, but has not been known to cause birth defects.
The findings provide the first detailed view of a flavivirus and offer structural information that can be used to unravel the processes that lead to viral infection.