| virus A hepatitis | A virus disease with a short incubation period (usually 15 to 50 days), caused by hepatitis A virus, a member of the family Picornaviridae, often transmitted by faecal-oral route; may be inapparent, mild, severe, or occasionally fatal and occurs sporadically or in epidemics, commonly in school-age children and young adults; necrosis of periportal liver cells with lymphocytic and plasma cell infiltration is characteristic and jaundice is a common symptom. Synonym: epidemic hepatitis, hepatitis A, infectious hepatitis, MS-1 hepatitis, short incubation hepatitis, virus A hepatitis. (05 Mar 2000) |
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| virus activating protease | <enzyme> Endoprotease from chick embryo; activates para- and orthomyoxovirus fusion glycoproteins by cleaving them at a single arginine site; ca(2+) dependent; similar to blood clotting factor x Registry number: EC 3.4.21.- (26 Jun 1999) |
| virus activation | The mechanism by which latent viruses, such as genetically transmitted tumour viruses or prophages of lysogenic bacteria, are induced to replicate and are released as infectious viruses. It may be effected by various endogenous and exogenous stimuli, including B-cell lipopolysaccharides, glucocorticoid hormones, halogenated pyrimidines, ionizing radiation, ultraviolet light, and superinfecting viruses. (12 Dec 1998) |
| virus assembly | The assembly of viral capsid proteins and nucleic acid to form a viral particle (virion). (12 Dec 1998) |
| virus B hepatitis | A virus disease with a long incubation period (usually 50 to 160 days), caused by hepatitis B virus, a DNA virus and member of the family Hepadnoviridae, usually transmitted by injection of infected blood or blood derivatives or by use of contaminated needles, lancets, or other instruments; clinically and pathologically similar to viral hepatitis type A, but there is no cross-protective immunity; HBsAg is found in the serum and the hepatitis delta virus occurs in some patients. Synonym: hepatitis B, serum hepatitis, transfusion hepatitis, virus B hepatitis. (05 Mar 2000) |
| virus blockade | The interference of one virus by another, either attenuated or unrelated. (05 Mar 2000) |
| virus C hepatitis | Principal cause of non-A, non-B posttransfusion hepatitis caused by an RNA virus that may be related to Flaviviridae family. Synonym: hepatitis C, virus C hepatitis. (05 Mar 2000) |
| virus diseases | A general term for diseases produced by viruses. (12 Dec 1998) |
| virus hepatitis | Liver inflammation caused by viruses. Specific hepatitis viruses have been labelled a, b, c, d, e, f, and g. While other viruses can also cause hepatitis, their primary target is not the liver. (12 Dec 1998) |
| virus hepatitis of ducks | A disease of very young ducklings, caused by the duck hepatitis virus (family Hepadnoviridae) and manifested as an acute illness of several days followed by death; the principal lesions are an enlarged necrotic liver filled with ecchymotic haemorrhages. (05 Mar 2000) |
| virus III of rabbits | An obsolete name for a latent herpesvirus infection of rabbits. Origin: the third strain isolated, used for study (05 Mar 2000) |
| virus integration | Insertion of viral DNA into host-cell DNA. This includes integration of phage DNA into bacterial DNA (lysogeny) to form a prophage or integration of retroviral DNA into cellular DNA to form a provirus. (12 Dec 1998) |
| virus keratoconjunctivitis | Follicular conjunctivitis followed by subepithelial corneal infiltrates; often caused by adenovirus type 8, less commonly by other types. Synonym: virus keratoconjunctivitis. (05 Mar 2000) |
| virus latency | The ability of a pathogenic virus to lie dormant within a cell (latent infection). In eukaryotes, subsequent activation and viral replication is thought to be caused by extracellular stimulation of cellular transcription factors. Latency in bacteriophage is maintained by the expression of virally encoded repressors. (12 Dec 1998) |
| virus pneumonia of pigs | A worldwide chronic pneumonia usually involving only the anterior lobes; it seldom causes death but is responsible for much unthriftiness; it is caused by the bacterium Mycoplasma hyopneumoniae. Synonym: virus pneumonia of pigs. (05 Mar 2000) |
| viroid |
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| virology |
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| viropexis |
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| virucidal |
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| virucide |
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| VIR | of or relating to the science of virology |
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| VIR | a specialist in virology |
| VIR | the branch of medical science that studies viruses and viral diseases |
| VIR | objet d'art collectively (especially fine antiques) |
| VIR | artistic quality |
| VIR | love of or taste for fine objects of art |
| VIR | being such in essence or effect though not in actual fact |
| VIR | being actually such in almost every respect |
| VIR | a reflected optical image (as seen in a plane mirror) |
| VIR | (computer science) memory created by using the hard disk to simulate additional random-access memory |
| VIR | a hypothetical three-dimensional visual world created by a computer |
| VIR | (computer science) memory created by using the hard disk to simulate additional random-access memory |