News tagged with west nile virus

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.

Biology / Cell & Microbiology

created Jun 01, 2011 | popularity 5 / 5 (3) | comments 3 | with audio podcast

Researchers sequence genome of mosquito that spreads West Nile virus

Last year, 720 people in the United States became infected with West Nile virus, a potentially serious illness that is spread through the bite of a mosquito - the Culex mosquito - that has first fed on inf ...

Biology / Biotechnology

created Sep 30, 2010 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Compound found that targets wide range of viruses

(PhysOrg.com) -- The compound was found to be effective against viruses that cause some of the world's deadliest diseases, such as AIDS, Ebola and Rift Valley fever.

Medicine & Health / Medical research

created Feb 01, 2010 | popularity 4.8 / 5 (22) | comments 6 | with audio podcast

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 ...

Biology / Cell & Microbiology

created Mar 22, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

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 ...

Chemistry / Biochemistry

created Jan 04, 2012 | popularity 4 / 5 (1) | comments 0 | with audio podcast

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.

Biology / Cell & Microbiology

created Dec 06, 2011 | popularity not rated yet | comments 0 | with audio podcast

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.

Biology / Biotechnology

created Apr 07, 2011 | popularity 5 / 5 (2) | comments 0

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 ...

Biology / Ecology

created Jan 20, 2011 | popularity not rated yet | comments 0 | with audio podcast

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.

Biology / Ecology

created Dec 07, 2010 | popularity 4.6 / 5 (7) | comments 2 | with audio podcast

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 ...

Biology / Ecology

created Dec 01, 2010 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

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.

Chemistry / Biochemistry

created Nov 17, 2010 | popularity 5 / 5 (4) | comments 0 | with audio podcast

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

created Nov 02, 2010 | popularity not rated yet | comments 0 | with audio podcast

Evolutionarily young protein helps ancient RNA get into shape

(PhysOrg.com) -- Scientists once believed that proteins govern most cellular activities. However in recent years scientists have found that a diverse group of RNA molecules regulate numerous biological activities. ...

Biology / Cell & Microbiology

created Oct 13, 2010 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Researchers identify protein that fights West Nile virus

(PhysOrg.com) -- Yale and McGill University scientists have identified a protein that is critical in fighting mosquito-borne West Nile Virus in mice. This finding could have therapeutic implications for controlling the potentially ...

Medicine & Health / Medical research

created Sep 06, 2010 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Scientists discover how chemical repellants trip up insects

Fire up the citronella-scented tiki torches, and slather on the DEET: Everybody knows these simple precautions repel insects, notably mosquitoes, whose bites not only itch and irritate, but also transmit diseases such as ...

Biology / Plants & Animals

created Aug 25, 2010 | popularity 5 / 5 (3) | comments 1 | with audio podcast

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.

Related topics: virus , mosquitoes