| LV | laryngeal vestibule; lateral ventricle; lecithovitellin; left ventricle, left ventricular; leucovori... |
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| MDV | Marek disease virus; mean dye [bolus] velocity; mucosal disease virus |
| MLV | Moloney leukemia virus; multilaminar vesicle; murine leukemia virus |
| MSV | maximum sustained level of ventilation; mean scale value; mean spatial velocity; Moloney sarcoma vir... |
| RSV | respiratory syncytial virus; right subclavian vein; Rous sarcoma virus |
| cat distemper virus | A virus of the genus Parvovirus that causes panleukopenia; the virus infects all Felidae, raccoons and mink, but not dogs or other Canidae. Synonym: cat distemper virus, panleukopenia virus of cats. (05 Mar 2000) |
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| Mayaro virus | A virus of the genus Alphavirus, family Togaviridae, causing epidemics of undifferentiated type fever in South America. (05 Mar 2000) |
| cattle plague virus | A species of morbillivirus causing cattle plague, a disease with high mortality. Sheep, goats, pigs, and other animals of the order artiodactyla can also be infected. (12 Dec 1998) |
| Catu virus | An arbovirus of the genus Bunyavirus, of the family Bunyaviridae; an agent of bunyavirus encephalitis. (05 Mar 2000) |
| viral haemorrhagic fever virus | <virology> An epidemic viral illness seen in southern Sudan and Zaire, caused by the Ebola virus. The illness is characterised by fever, malaise, muscle aches, respiratory symptoms, diarrhoea, vomiting, epistaxis, haemoptysis, haematemesis, rash, tremors and subconjunctival haemorrhages. Transmitted by close bodily contact with infected individuals (blood, faeces and body fluids). Incubation is-21 days with initial symptoms of fever and headache. There is no specific treatment and death can occur within 10 days. (27 Sep 1997) |
| CA virus | <abbreviation> Croup-associated virus. (05 Mar 2000) |
| measles virus | <virology> Paramyxovirus that causes the childhood disease measles and is responsible for subacute sclerosing panencephalitis. (18 Nov 1997) |
| measles virus vaccine | Vaccine containing live, attenuated strains of measles virus prepared in chick embryo cell culture. See: measles, mumps, and rubella vaccine. (05 Mar 2000) |
| virus | <virology> Viruses are obligate intracellular parasites of living but noncellular nature, consisting of DNA or RNA and a protein coat. They range in diameter from 20-300nm. Class I viruses (Baltimore classification) have double stranded DNA as their genome. Class II have a single stranded DNA genome. Class III have a double stranded RNA genome. Class IV have a positive single stranded RNA genome, the genome itself acting as mRNA. Class V have a negative single stranded RNA genome used as a template for mRNA synthesis. Class VI have a positive single stranded RNA genome but with a DNA intermediate not only in replication but also in mRNA synthesis. The majority of viruses are recognised by the diseases they cause in plants, animals and prokaryotes. Viruses of prokaryotes are known as bacteriophages. (13 Oct 1997) |
| 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 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) |
| virus assembly | The assembly of viral capsid proteins and nucleic acid to form a viral particle (virion). (12 Dec 1998) |
| virus-associated haemophagocytic syndrome | <syndrome> A syndrome closely resembling malignant histiocytosis but potentially reversible, following a herpes group virus infection such as by the Epstein-Barr virus. (05 Mar 2000) |
| 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) |