| ac | acceleration; acetyl; acid; acromioclavicular; acute; alternating current; antecubital; anterior cha... |
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| ACA | abnormal coronary artery; acrodermatitis chronica atrophicans; acute cerebellar ataxia; adenocarcino... |
| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
| ACF | accessory clinical findings; acute care facility; anterior cervical fusion; area correction factor; ... |
| ACIP | acute canine idiopathic polyneuropathy; Advisory Committee on Immunization Practices [CDC] |
| 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) |
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| 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) |
| 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, human papilloma | A family of over 60 viruses responsible for causing warts. The majority of the viruses produce warts on the hands, fingers, and even the face. most of these viruses are innocuous, causing nothing more than cosmetic concerns. Several types of HPV are confined primarily to the moist skin of the genitals, producing genital warts and elevating the risk for cancer of the cervix. These viruses that cause wartlike growths on the genitals and contribute to cancer of the cervix are sexually transmitted. (12 Dec 1998) |
| 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) |