News tagged with west nile virus
Possible new route to fight dengue virus pointed
Researchers have identified enzymes and biochemical compounds called lipids that are targeted and modified by the dengue virus during infection, suggesting a potential new approach to control the aggressive ...
Mar 22, 2012 |
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Australian zoo probes mystery rhino deaths
An Australian outback zoo was Wednesday investigating the sudden and mystifying deaths of four white rhinos who showed "neurologic abnormalities" like stumbling.
Mar 21, 2012 |
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No more free rides for 'piggy-backing' viruses
Scientists have determined the structure of the enzyme endomannosidase, significantly advancing our understanding of how a group of devastating human viruses including HIV and Hepatitis C hijack human enzymes to reproduce ...
Jan 04, 2012 |
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Researchers evaluate conservation of island bird species in the context of climate change
The island scrub-jay is the only island endemic passerine species in the continental United States. Although it is not classified as endangered, the species faces a number of threats to its long-term survival, and climate ...
Dec 27, 2011 |
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How fruit flies can teach us about curing chronic pain and halting mosquito-borne diseases
Studies of a protein that fruit flies use to sense heat and chemicals may someday provide solutions to human pain and the control of disease-spreading mosquitoes.
Dec 06, 2011 |
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Scientists identify odor molecules that hamper mosquitoes' host-seeking behavior
Female mosquitoes are efficient carriers of deadly diseases such as malaria, dengue and yellow fever, resulting each year in several million deaths and hundreds of millions of cases.
Jun 01, 2011 |
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Bugs emerge to bug us, and a few pose health risks
(AP) -- It's that time of year when the bugs emerge to bug us.
Apr 11, 2011 |
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Genetically modified fungus could fight malaria
In a cramped London laboratory filled with test tubes, bacteria and mosquitoes, scientists are trying to engineer a new weapon in the battle against malaria: a mutant fungus.
Apr 07, 2011 |
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Long-distance migration may help reduce infectious disease risks for many animal species
It's a common assumption that animal migration, like human travel across the globe, can transport pathogens long distances, in some cases increasing disease risks to humans. West Nile Virus, for example, spread rapidly along ...
Jan 20, 2011 |
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Invisible invasive species
While Asian carp, gypsy moths and zebra mussels hog invasive-species headlines, many invisible invaders are altering ecosystems and flourishing outside of the limelight.
Dec 07, 2010 |
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Biodiversity loss: Detrimental to your health
(PhysOrg.com) -- Plant and animal extinctions are detrimental to your health. That's the conclusion of a paper published in this week's issue of the journal Nature by scientists who studied the link betwee ...
Dec 01, 2010 |
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Scientists identify antivirus system
(PhysOrg.com) -- Viruses have led scientists at Washington University School of Medicine in St. Louis to the discovery of a security system in host cells.
Nov 17, 2010 |
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West Nile virus more prevalent in low-income neighborhoods, study finds
Low-income neighborhoods appear to be the most susceptible to West Nile virus, a mosquito-transmitted disease that is linked to more than 1,000 deaths since in the United States since 1999, according to new ...
Medicine & Health / Diseases, Conditions, Syndromes
Nov 16, 2010 |
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Antibody locks up West Nile's infection mechanism
(PhysOrg.com) -- Researchers have learned the structure that results when an antibody binds to the West Nile virus, neutralizing the virus by locking up its infection mechanism. The information could help scientists develop ...
Medicine & Health / Medical research
Nov 02, 2010 |
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Mosquito monitoring saves lives and money, analysis finds
Cutting surveillance for mosquito-borne diseases would likely translate into an exponential increase in both the number of human cases and the health costs when a disease outbreak occurs, according to an analysis by Emory ...
Medicine & Health / Diseases, Conditions, Syndromes
Oct 26, 2010 |
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West Nile virus
West Nile virus (or WNV) is a virus of the family Flaviviridae. Part of the Japanese encephalitis (JE) antigenic complex of viruses, it is found in both tropical and temperate regions. It mainly infects birds, but is known to infect humans, horses, dogs, cats, bats, chipmunks, skunks, squirrels, and domestic rabbits. The main route of human infection is through the bite of an infected mosquito.
Image reconstructions and cryoelectron microscopy reveal a 45–50 nm virion covered with a relatively smooth protein surface. This structure is similar to the dengue fever virus; both belong to the genus Flavivirus within the family Flaviviridae. The genetic material of WNV is a positive-sense, single strand of RNA, which is between 11,000 and 12,000 nucleotides long; these genes encode seven non-structural proteins and three structural proteins. The RNA strand is held within a nucleocapsid formed from 12 kDa protein blocks; the capsid is contained within a host-derived membrane altered by two viral glycoproteins.
For more information about West Nile virus, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
