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Latest Viruses Stories

Scientists Explore Mechanisms Of Viruses' Shells
2013-12-11 09:41:20

International School of Advanced Studies (SISSA) Viruses are like small vessels containing an active component, the genetic material, that can infect a host cell. The vessel, called capsid or vector, is basically a shell that changes its shape when it penetrates a cell to infect it, and may even break into pieces. The research team, that includes Guido Polles and Cristian Micheletti of SISSA, carried out computer simulations and used theoretical models to understand how such 'vessel'...

2013-12-05 23:45:13

Viruses alter plant biochemistry in order to manipulate visiting aphids into spreading infection University of Cambridge researchers have shown that viruses use aphids as pawns, discouraging the insects from permanently settling on already-infected crops and using this forced migration to spread infection to healthy vegetation. Aphids are sap-sucking insects that attack many different types of plants and are major transmitters of crop-infecting viruses. By altering plant biochemistry,...

Mystery Surrounds Isolated Dengue Fever Outbreaks In United States
2013-11-15 09:03:40

Lawrence LeBlond for redOrbit.com - Your Universe Online Dengue fever, an infectious tropical disease carried by several species of mosquito in the genus Aedes, has been showing up in Key West and the Florida mainland, potentially exposing millions of people to a disease that can lead to life-threatening illness. While the dengue virus is mysteriously working its way up into Florida, researchers are equally as puzzled as to why the dangerous illness has not yet become common in and...

Camel Owned By A MERS Patient Tests Positive For Coronavirus
2013-11-12 05:31:58

Lawrence LeBlond for redOrbit.com - Your Universe Online The Middle East respiratory coronavirus (MERS-CoV), which has sickened more than 150 people since first being detected in September 2012, has now been positively identified in the first camel, according to the BBC. The animal had been owned by a person previously diagnosed with the SARS-like virus. This confirmation follows an earlier study that linked camels to the virus. Researchers with the National Institute for Public Health...

Defending Food Crops Using Whitefly Experimentation To Prevent Contamination Of Agriculture
2013-11-08 10:33:56

The Journal of Visualized Experiments On November 8th, JoVE, the Journal of Visualized Experiments, will introduce a new technique to aid in the development of defenses against diseases threatening food crops worldwide. The method, published under the title Transmitting Plant Viruses Using Whiteflies, is applicable to such at-risk crops as tomatoes and common bean plants. The whitefly method provides a means of interfering with the plant-contamination process as well as the cultivation of...

First Coronavirus Case Detected In Oman, Four More In Saudi Arabia
2013-11-01 10:09:01

Lawrence LeBlond for redOrbit.com - Your Universe Online As the annual hajj pilgrimage has come and gone in the Middle East, Saudi Arabia’s Ministry of Health continues to monitor the situation for any signs of an increase in the number of cases of Middle East respiratory syndrome coronavirus (MERS-CoV). On October 29 and again on Oct. 31, 2013, the World Health Organization (WHO) reported of additional laboratory-confirmed cases of MERS-CoV, as submitted by the Ministry of Health...

SARS-Like Coronavirus Found In Bats
2013-10-31 04:47:55

redOrbit Staff & Wire Reports - Your Universe Online Ten years after the SARS outbreak, researchers from a nonprofit conservation and global health issues organization have announced the discovery of a new coronavirus in Chinese horseshoe bats similar to the disease that infected more than 8,000 people and resulted in nearly 800 deaths worldwide. Scientists with EcoHealth Alliance and an international team of colleagues have found genome sequences of a new pathogen closely related...


Latest Viruses Reference Libraries

45_7835ab5b89858b7a8f29bafdbf447884
2011-03-04 17:45:07

Zucchini Yellow Mosaic Virus (ZYMV) is an aphid-borne potyvirus and is regarded as a major pathogen of cucurbits. It affects pumpkins, squashes, vegetable marrows, courgettes, melons, watermelons, cucumbers, gherkins, and various gourds especially zucchinis. The effects are severe leaf mosaic, yellowing and eventually the leaves show "shoestring" symptoms. Fruits can become stunted, twisted and deformed by raised protuberances, which make them unmarketable. Infection may be spread through...

70_70b37c5853d54e869c43166193fc4975
2011-03-03 21:36:56

Strawberry vein banding virus (SVBV) is a plant pathogenic virus and a member of the family Caulimoviridae. It was first described by Frazier after differential aphid transmission to susceptible wild strawberries. He identified suitable virus indicators and demonstrated virus transmission by various aphids, dodder, and grafting. He also established the inability of the virus to transmit via sap. Stenger purified and cloned the SVBV genome. Due to the limited techniques of the time he was...

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...

45_bc02a98a30585718c34a7eee0900e51d
2011-02-25 18:53:25

West Nile virus (WNV) is a virus of the family Flaviviridae. It is part of the Japanese encephalitis antigenic complex of viruses and is found in both tropical and temperate regions. It primarily infects birds but can infect humans, horses, dogs, cats, bats, and other mammals. Humans are generally infected through the bites of mosquitoes and about 90% of West Nile Virus infections are without symptoms. The virion is 45-60 nm and covered with a relatively smooth protein surface. It is...

70_1a57dceb4fac796cf2ab07fe90a19d10
2011-02-23 21:23:46

Vesicular stomatitis virus (VSV) is a virus in the family Rhabdoviridae. Rabies is in the same family. VSV infects insects and animals and is important to farmers in certain regions of the world where it can infect cattle. It is a common laboratory virus used for studying the Rhabdoviridae family and viral evolution. It is the prototypic member of the vesiculovirus genera of the Rhabdovirus family. The genome is a single molecule of negative-sense RNA that encodes five major proteins.

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Word of the Day
virgule
  • A punctuation mark (/) used to separate related items of information.
  • A little rod; a twig.
This word comes from the Late Latin 'virgula,' accentual mark, a diminutive of 'virga,' rod.
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