| viral structural proteins | Viral proteins that do not regulate transcription. They are coded by viral structural genes and include nucleocapsid core proteins (gag proteins), enzymes (pol proteins), and membrane components (env proteins). Transcription of viral structural genes is regulated by viral regulatory proteins. (12 Dec 1998) |
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| viral tail proteins | Proteins found in the tail sections of DNA and RNA viruses. It is believed that these proteins play a role in directing chain folding and assembly of polypeptide chains. (12 Dec 1998) |
| viral therapy | The use of genetically altered virus particles for delivering genes to specific sites for the purpose of therapy. (05 Mar 2000) |
| viral transformation | <oncology, virology> Malignant transformation of an animal cell in culture, induced by a virus. (18 Nov 1997) |
| viral vaccines | Suspensions of attenuated or killed viruses administered for the prevention or treatment of infectious viral disease. (12 Dec 1998) |
| viral vector | <molecular biology> Viral DNA that has been modified to serve as a vector for recombinant DNA. (11 Nov 1997) |
| viral wart | A keratotic papilloma of the epidermis which occurs most frequently in young persons as a result of localised infection by human papilloma virus, usually types 2 and 4; the lesions are of variable duration, eventually undergoing spontaneous regression, and are both exophytic and endophytic, with hyperkeratosis, parakeratosis, hypergranulosis, koilocytosis, and papillomatosis. Synonym: common wart, infectious warts, verruca simplex, viral wart. (05 Mar 2000) |
| cell transformation, viral | An inheritable change in cells manifested by changes in cell division and growth and alterations in cell surface properties. It is induced by infection with a transforming virus. (12 Dec 1998) |
| goose viral hepatitis | An acute, highly fatal disease of goslings and Muscovy ducklings caused by the goose parvovirus and characterised by anorexia, feather loss, and tissue haemorrhages. Synonym: Derzsy's disease. (05 Mar 2000) |
| meningitis, viral | Meningitis of viral origin usually due to picornaviruses, togaviruses, herpes viruses, paramyxoviruses, or arenaviruses. Symptoms include headache, malaise, nausea, fever, and neck stiffness. (12 Dec 1998) |
| RNA, viral | Ribonucleic acid that makes up the genetic material of viruses. (12 Dec 1998) |
| conjunctivitis, viral | Inflammation, often mild, of the conjunctiva caused by a variety of viral agents. Conjunctival involvement may be part of a systemic infection. (12 Dec 1998) |
| pneumonia, viral | Pneumonia caused by a virus. (12 Dec 1998) |
| haemagglutination, viral | Agglutination of erythrocytes by a virus. (12 Dec 1998) |
| haemorrhagic fevers, viral | A group of viral diseases of diverse aetiology but having many similar clinical characteristics; increased capillary permeability, leukopenia, and thrombocytopenia are common to all. Haemorrhagic fevers are characterised by sudden onset, fever, headache, generalised myalgia, backache, conjunctivitis, and severe prostration, followed by various haemorrhagic symptoms. Haemorrhagic fever with kidney involvement is haemorrhagic fever with renal syndrome. (12 Dec 1998) |