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Last updated on April 17, 2014 at 17:30 EDT

Latest Virus Stories

2014-02-20 12:10:40

Infection is a major global health problem affecting 160 million people worldwide Rutgers University scientists have determined the structure of a hepatitis C surface protein, a finding that could assist in the development of a vaccine to halt the spread of the the deadly disease that has infected 3.2 million Americans. Joseph Marcotrigiano, associate professor of chemistry and chemical biology, says this new research – published online today in Nature – describes an outer region of...

2014-02-18 09:02:53

Discovery by North Carolina researchers described at biophysical society meeting may advance development of vaccines to fight global, mosquito-borne scourge Dengue fever, an infectious tropical disease caused by a mosquito-borne virus, afflicts millions of people each year, causing fever, headache, muscle and joint pains and a characteristic skin rash. In some people the disease progresses to a severe, often fatal, form known as dengue hemorrhagic fever. Despite its heavy toll, the...

Flu Evolution Study May Change Textbooks, History Books
2014-02-17 10:55:14

Daniel Stolte - University of Arizona A new study reconstructing the evolutionary tree of flu viruses challenges conventional wisdom and solves some of the mysteries surrounding flu outbreaks of historical significance. The study, published in the journal Nature, provides the most comprehensive analysis to date of the evolutionary relationships of influenza virus across different host species over time. In addition to dissecting how the virus evolves at different rates in different...

2014-02-07 12:55:29

Viruses mutate fast, which means they can quickly become resistant to anti-viral drugs. But viruses also depend on proteins and nutrients provided by their hosts, and therefore one strategy to identify new anti-viral drugs is to identify and target such host-cell components. A paper published on February 6th in PLOS Pathogens reports that proteins involved in the regulation of cholesterol are essential for hantavirus entry into human host cells. There are only about 30 known human cases of...

2014-02-07 12:52:46

Berkeley Researchers Show Expanded Role for Guide RNA in Cas9 Interactions with DNA The potential is there for bacteria and other microbes to be genetically engineered to perform a cornucopia of valuable goods and services, from the production of safer, more effective medicines and clean, green, sustainable fuels, to the clean-up and restoration of our air, water and land. Cells from eukaryotic organisms can also be modified for research or to fight disease. To achieve these and other...

RNA Study On Barley Virus Reveals Key Link To The Crusades
2014-02-07 06:43:35

redOrbit Staff & Wire Reports - Your Universe Online Researchers at the University of Warwick have sequenced an ancient RNA genome for the first time ever. The RNA belonged to a barley virus once thought to be just 150 years old, but has now been determined to date back at least 2,000 years, revealing how extreme farming during the time of the Crusades contributed to its spread. The researchers detected and sequenced the RNA genome of Barley Stripe Mosaic Virus (BSMV) in a...

Novel Bird Flu H10N8 Has Potential To Become Pandemic
2014-02-05 07:13:38

Lawrence LeBlond for redOrbit.com - Your Universe Online While China has already been dealing with one avian influenza outbreak – H7N9 – a novel strain has emerged, killing its first victim in December. The new strain, H10N8, infected another person last month and experts are now concerned of the potential for another pandemic. H10N8 is the fifth novel influenza strain to emerge in the last 17 years. Scientists, led by Dr Yuelong Shu, of the Chinese Center for Disease Control and...

2014-02-04 11:58:44

Researchers use a naturally occurring HIV variant to trace a T cell lineage for 17 years WHAT: A team of researchers has reported a novel method for tracking CD4+ T cells in people infected with HIV. CD4+ T cells are critical for immune defense against an array of pathogens and are a primary target of HIV. In the study, researchers used a unique, replication-incompetent (defective) form of HIV identified in a patient in the early 1990s. The defective virus had integrated into the genome...

2014-02-04 11:53:12

Discovery may have implications for HIV vaccine research WHAT: NIH scientists have discovered a mechanism involved in stabilizing key HIV proteins and thereby concealing sites where some of the most powerful HIV neutralizing antibodies bind, findings with potential implications for HIV vaccine research. Numerous spikes jut out of the surface of HIV, each containing a set of three identical, bulb-shaped proteins called gp120 that can be closed together or spread apart like the petals of...

2014-01-31 10:44:45

HIV infection has many unhealthy consequences on the body, but in particular it messes up the gut. The human intestine has the highest concentration of HIV target cells, the majority of which are destroyed within days of infection, and before CD4 T cell counts drop measurably in the blood. A study published on January 30th in PLOS Pathogens reports the first three-dimensional ultra-structural study of HIV infection in vivo. Not only does it reveal details on how the virus quickly infects...


Latest Virus Reference Libraries

0_57c89d5bd133fff5bf10b17b705f87c1
2011-03-04 17:38:30

Yellow fever is an acute viral hemorrhagic disease with a 40 to 50 nm enveloped RNA virus with positive sense of the Flaviviridae family. It is transmitted by the bite of female mosquitoes and is found in tropical and subtropical areas in South America and Africa, but not in Asia. Primates and a few kinds of mosquitoes are the only known hosts. The origin of the disease is most likely Africa. From there it was introduced to South America through the slave trade in the 16th century. There...

70_abea42e7e9120224289c31dda90b6e25
2011-03-03 21:34:50

Rubella virus is the cause of congenital rubella syndrome when infection occurs during the first weeks of pregnancy. Humans are the only known host of this virus. It is the only member of the genus of Rubivirus and belongs to the family of Togaviridae. Members of the Togaviridae family typically have a genome of single-stranded RNA of positive polarity which is enclosed by an icosahedral capsid. This genome has a length of about 9,757 nucleotides and encodes for two non-structural as well...

0_c4753f392575c29d1886d90b7b382782
2011-02-23 21:28:34

A virus is a small infectious agent that replicates inside the living cells of organisms. It is a small infectious agent that can replicate only inside the living cells of organisms. Most are too small to be seen by anything but a microscope and they infect all organisms from animals to plants to bacteria. The first one discovered was the tobacco virus in 1898. Since then around 5,000 viruses have been described in detail although there are millions of different types. They are found in...

70_8c49b7354584ec16683e38a21f19f6de
2011-02-23 21:18:56

Vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family. It is well-known for its role in eradicating smallpox. It was the first human disease to to successfully be eradicated by science. The World Health Organization was the one who completed the endeavor. The vaccinia virus saw renewed interest in the early 21st century due to concerns about the smallpox virus being used as an agent for bioterrorism. They can be divided into four types:...

70_dd0fb65b7366091c1e0897e58f1798fa
2011-02-23 20:58:48

Simian immunodeficiency virus (SIV), also known as African Green Monkey virus, is a retrovirus able to infect at least 33 species of African primates. SIV has been present in monkeys and apes for at least 32,000 years, probably longer. Strains from two of these primate species have crossed the barriers into humans resulting in HIV-2 and HIV-1. Contraction involves contact with the blood of chimps that are often hunted for bushmeat in Africa. SIV infections appear in many cases to be...

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