West Nile Virus
Deaths from West Nile virus hit record last year
U.S. health officials say last year was the worst ever for West Nile virus deaths.
Diseases, Conditions, Syndromes
May 13, 2013 |
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Mosquito survey identifies reservoir of disease
A large scale, five year study of mosquitoes from different ecological regions in Kenya, including savannah grassland, semi-arid Acacia thorn bushes, and mangrove swamps, found a reservoir of viruses carried by mosquitoes ...
Diseases, Conditions, Syndromes
May 09, 2013 |
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Europe's financial crisis leads to suicide surge
The harsh spending cuts introduced by European governments to tackle their crippling debt problems have not only pitched the region into recession—they are also being partly blamed for outbreaks of diseases not normally ...
Psychology & Psychiatry
Mar 26, 2013 |
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Some brain cells are better virus fighters
(Medical Xpress)—Viruses often spread through the brain in patchwork patterns, infecting some cells but missing others. New research at Washington University School of Medicine in St. Louis helps explain ...
Medical research
Mar 07, 2013 |
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West Nile virus passes from female to eggs, but less so from larvae to adults
In California Culex mosquitoes are considered to be the principle vectors of West Nile virus (WNV), which infects birds, humans, and other mammals during the summer. In addition, these mosquitoes may also serve as overwintering ...
Diseases, Conditions, Syndromes
Mar 05, 2013 |
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Forensic pathology: Tracing the origin of the Usutu Virus
It is generally a mystery how new diseases arise and how the pathogens that cause them first enter countries. However, clues may come from examination of specimens from similar outbreaks. Scientists at the University of ...
Diseases, Conditions, Syndromes
Feb 08, 2013 |
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Spanish researchers design biomarkers for the detection of dengue and West Nile virus
Researchers at the University of Granada have designed a set of biomarkers that can be used in diagnostic tests for the detection of dengue and the West Nile virus, two infectious diseases transmitted by ...
Medical research
Feb 06, 2013 |
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Peptide found to induce autophagy resulting in defense against diseases
(Medical Xpress)—A multi-disciplined team of researchers from the United States and The Netherlands has found that introducing a certain type of peptide into mice cells induces autophagy, which in turn helps in fighting ...
Medical research
Jan 31, 2013 |
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Researchers see more West Nile virus in orchards and vineyards
Washington State University researchers have linked orchards and vineyards with a greater prevalence of West Nile virus in mosquitoes and the insects' ability to spread the virus to birds, horses and people.
Diseases, Conditions, Syndromes
Jan 30, 2013 |
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Candidate dengue vaccine shows promise in early-stage trial
A candidate dengue vaccine developed by scientists at the National Institutes of Health (NIH) has been found to be safe and to stimulate a strong immune response in most vaccine recipients, according to results from an early-stage ...
Diseases, Conditions, Syndromes
Jan 23, 2013 |
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Survival of 'Obamacare' tops list of biggest health news in 2012
(HealthDay)—With millions of Americans watching and waiting, the U.S. Supreme Court largely upheld the Obama Administration's health care reform legislation, making the survival of "Obamacare" this year's ...
Other
Dec 28, 2012 |
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Emerging vector-borne diseases create new public health challenge
Human activities are advancing the spread of vector-borne, zoonotic diseases such as West Nile virus, Lyme disease and dengue fever, report scientists publishing a series of papers today in the journal The ...
Diseases, Conditions, Syndromes
Nov 30, 2012 |
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Latest West Nile tally: 5,245 cases, 236 deaths
(HealthDay)—The West Nile virus outbreak has now reached 5,245 cases, including 236 deaths, U.S. health officials reported Wednesday.
Diseases, Conditions, Syndromes
Nov 28, 2012 |
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Hepatitis C treatment's side effects can now be studied in the lab
(Medical Xpress)—The adverse side effects of certain hepatitis C medications can now be replicated and observed in Petri dishes and test tubes, thanks to a research team led by Craig Cameron, the Paul Berg ...
Diseases, Conditions, Syndromes
Nov 16, 2012 |
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Did wild birds cause the 2010 deadly West Nile virus outbreak in Greece?
In 2010, 35 people in Greece died from a West Nile virus (WNV) outbreak, with a further 262 laboratory-confirmed human cases. A new article published in BioMedCentral's open access journal Virology Journal examines whethe ...
Diseases, Conditions, Syndromes
Nov 11, 2012 |
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West Nile virus (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, domestic rabbits, crows, robins, crocodiles and alligators. The main route of human infection is through the bite of an infected mosquito. Approximately 90% of West Nile Virus infections in humans are without any symptoms.
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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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