Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Virus> ?p ?o }
- Virus abstract "A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants, and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898, about 5,000 virus species have been described in detail, although there are millions of different types. Viruses are found in almost every ecosystem on Earth and are the most abundant type of biological entity. The study of viruses is known as virology, a sub-speciality of microbiology.While not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles. These viral particles, also known as virions, consist of two or three parts: (i) the genetic material made from either DNA or RNA, long molecules that carry genetic information; (ii) a protein coat, called the capsid, which surrounds and protects the genetic material; and in some cases (iii) an envelope of lipids that surrounds the protein coat when they are outside a cell. The shapes of these virus particles range from simple helical and icosahedral forms for some virus species to more complex structures for others. Most virus species have virions that are too small to be seen with an optical microscope. The average virion is about one one-hundredth the size of the average bacterium.The origins of viruses in the evolutionary history of life are unclear: some may have evolved from plasmids—pieces of DNA that can move between cells—while others may have evolved from bacteria. In evolution, viruses are an important means of horizontal gene transfer, which increases genetic diversity. Viruses are considered by some to be a life form, because they carry genetic material, reproduce, and evolve through natural selection. However they lack key characteristics (such as cell structure) that are generally considered necessary to count as life. Because they possess some but not all such qualities, viruses have been described as \"organisms at the edge of life\".Viruses spread in many ways; viruses in plants are often transmitted from plant to plant by insects that feed on plant sap, such as aphids; viruses in animals can be carried by blood-sucking insects. These disease-bearing organisms are known as vectors. Influenza viruses are spread by coughing and sneezing. Norovirus and rotavirus, common causes of viral gastroenteritis, are transmitted by the faecal–oral route and are passed from person to person by contact, entering the body in food or water. HIV is one of several viruses transmitted through sexual contact and by exposure to infected blood. The range of host cells that a virus can infect is called its \"host range\". This can be narrow, meaning a virus is capable of infecting few species, or broad, meaning it is capable of infecting many.Viral infections in animals provoke an immune response that usually eliminates the infecting virus. Immune responses can also be produced by vaccines, which confer an artificially acquired immunity to the specific viral infection. However, some viruses including those that cause AIDS and viral hepatitis evade these immune responses and result in chronic infections. Antibiotics have no effect on viruses, but several antiviral drugs have been developed.".
- Virus thumbnail Rotavirus_Reconstruction.jpg?width=300.
- Virus wikiPageExternalLink a-gazillion-tiny-avatars.
- Virus wikiPageExternalLink viralzone.expasy.org.
- Virus wikiPageExternalLink ari-helenius-part-1.html.
- Virus wikiPageExternalLink david-baltimore.html.
- Virus wikiPageExternalLink viruses?playlist=Biology.
- Virus wikiPageExternalLink viruses.
- Virus wikiPageExternalLink comp_type:virus%20AND%20status:REL.
- Virus wikiPageID "19167679".
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- Virus wikiPageLength "133103".
- Virus wikiPageLength "19".
- Virus wikiPageOutDegree "1".
- Virus wikiPageOutDegree "551".
- Virus wikiPageRedirects Virus.
- Virus wikiPageRevisionID "704762736".
- Virus wikiPageRevisionID "71390625".
- Virus wikiPageWikiLink 1918_flu_pandemic.
- Virus wikiPageWikiLink 2001_United_Kingdom_foot-and-mouth_outbreak.
- Virus wikiPageWikiLink Abiogenesis.
- Virus wikiPageWikiLink Acanthamoeba.
- Virus wikiPageWikiLink Aciclovir.
- Virus wikiPageWikiLink Adaptive_immune_system.
- Virus wikiPageWikiLink Adenoviridae.
- Virus wikiPageWikiLink lymphoma.
- Virus wikiPageWikiLink Aerosol.
- Virus wikiPageWikiLink Agar.
- Virus wikiPageWikiLink Algal_bloom.
- Virus wikiPageWikiLink Alphaherpesvirinae.
- Virus wikiPageWikiLink André_Michel_Lwoff.
- Virus wikiPageWikiLink Angola.
- Virus wikiPageWikiLink Animal.
- Virus wikiPageWikiLink Antibiotics.
- Virus wikiPageWikiLink Antibody.
- Virus wikiPageWikiLink Antigen.
- Virus wikiPageWikiLink Antigen_presentation.
- Virus wikiPageWikiLink Antigenic_drift.
- Virus wikiPageWikiLink Antigenic_shift.
- Virus wikiPageWikiLink Antimicrobial_resistance.
- Virus wikiPageWikiLink Antiviral_drug.
- Virus wikiPageWikiLink Anus.
- Virus wikiPageWikiLink Aphid.
- Virus wikiPageWikiLink Aphthovirus.
- Virus wikiPageWikiLink Apoptosis.
- Virus wikiPageWikiLink Archaea.
- Virus wikiPageWikiLink Arenavirus.
- Virus wikiPageWikiLink Arterivirus.
- Virus wikiPageWikiLink Asymptomatic_carrier.
- Virus wikiPageWikiLink Atomic-force_microscopy.
- Virus wikiPageWikiLink Avian_influenza.
- Virus wikiPageWikiLink B_cell.
- Virus wikiPageWikiLink Bacteria.
- Virus wikiPageWikiLink Bacteriophage.
- Virus wikiPageWikiLink Barbara_McClintock.
- Virus wikiPageWikiLink Bartholomeus_Anglicus.
- Virus wikiPageWikiLink Baruch_Samuel_Blumberg.
- Virus wikiPageWikiLink Biological_pump.
- Virus wikiPageWikiLink Biological_warfare.
- Virus wikiPageWikiLink Biotechnology.
- Virus wikiPageWikiLink Bluetongue_disease.
- Virus wikiPageWikiLink Bornavirus.
- Virus wikiPageWikiLink Bovine_spongiform_encephalopathy.
- Virus wikiPageWikiLink Bovine_virus_diarrhea.
- Virus wikiPageWikiLink Brome_mosaic_virus.
- Virus wikiPageWikiLink Burkitts_lymphoma.
- Virus wikiPageWikiLink CD4.
- Virus wikiPageWikiLink CRISPR.
- Virus wikiPageWikiLink Caliciviridae.
- Virus wikiPageWikiLink Cancer.
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- Virus wikiPageWikiLink Capsid.
- Virus wikiPageWikiLink Capsomere.
- Virus wikiPageWikiLink Carbon.
- Virus wikiPageWikiLink Carbon_cycle.
- Virus wikiPageWikiLink Carbon_sequestration.
- Virus wikiPageWikiLink Category:Virology.
- Virus wikiPageWikiLink Category:Viruses.
- Virus wikiPageWikiLink Caulimoviridae.
- Virus wikiPageWikiLink Cell-mediated_immunity.
- Virus wikiPageWikiLink Cell_(biology).
- Virus wikiPageWikiLink Cell_biology.
- Virus wikiPageWikiLink Cell_division.
- Virus wikiPageWikiLink Cell_membrane.
- Virus wikiPageWikiLink Cell_nucleus.
- Virus wikiPageWikiLink Cellulose.
- Virus wikiPageWikiLink Centers_for_Disease_Control_and_Prevention.
- Virus wikiPageWikiLink Cervix.
- Virus wikiPageWikiLink Chain_termination.
- Virus wikiPageWikiLink Chamberland_filter.
- Virus wikiPageWikiLink Charles_Chamberland.
- Virus wikiPageWikiLink Chemokine_receptor.
- Virus wikiPageWikiLink Chickenpox.
- Virus wikiPageWikiLink Chile.
- Virus wikiPageWikiLink Chlamydia_(genus).
- Virus wikiPageWikiLink Cholera.
- Virus wikiPageWikiLink Chronic_condition.
- Virus wikiPageWikiLink Chronic_fatigue_syndrome.
- Virus wikiPageWikiLink Chronic_wasting_disease.
- Virus wikiPageWikiLink Circoviridae.