| AIB | aminoisobutyrate; avian infectious bronchitis |
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| AL | absolute latency; acinar lumen; acute leukemia; adaptation level; albumin; alcoholism [and other dru... |
| ALB | albumin; avian lymphoblastosis |
| ALC | absolute lymphocyte count; acute lethal catatonia; aided living center; Alternative Lifestyle Checkl... |
| AL-SV | avian leukosis sarcoma virus |
| influenza viruses | Virus's of the family Orthomyxoviridae which cause influenza and influenza-like infections of humans and other animals; virus's included are influenza virus types A and B of the genus Influenzavirus, causing, respectively, influenza A and B, and influenza virus type C, which probably belongs to a separate genus and causes influenza C. (05 Mar 2000) |
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| influenza virus vaccines | Influenza virus grown in embryonated eggs and inactivated, usually by the addition of formalin; both whole virus and subunit preparations containing haemagglutinins and neuraminidase are used; because of the marked and progressive antigenic variation of the influenza viruses, the strains included are regularly changed following various outbreaks of influenza in order to include most recently isolated epidemic strains of both type A influenza and type B influenza. (05 Mar 2000) |
| endemic influenza | Influenza, usually of a less severe type, occurring with some degree of regularity during the winter season, especially in the larger cities of the world. Synonym: influenza nostras. (05 Mar 2000) |
| equine influenza | <veterinary, virology> A highly contagious upper respiratory infection of horses and other equids caused by equine strains of influenza virus type A. It is characterised by fever and respiratory signs similar to but more severe than those of equine rhinopneumonitis; oedema of the lower trunk and limbs (epizootic cellulitis) may occur; the disease is frequently fatal when secondary bacterial pneumonia intervenes. (05 Mar 2000) |
| avian | <zoology> Relating to, affecting, resembling or derived from a bird. (02 Jan 1998) |
| avian achondroplasia | <veterinary> An achondroplasia seen in several breeds of domestic chickens. Inheritance: autosomal dominant. (05 Mar 2000) |
| avian adenovirus type 1 proteinase | <enzyme> 206 aa residues of which 66% are homologous to human ad2 emzyme embl/genbank l13161 Registry number: EC 3.4.22.- Synonym: aavl proteinase, aavl endopeptidase (26 Jun 1999) |
| avian diphtheria | An infection by the fowlpox virus in which tracheal involvement is especially severe. See: fowlpox. Synonym: fowl diphtheria. (05 Mar 2000) |
| avian encephalomyelitis virus | <virology> A virus of the genus Enterovirus (family Picornaviridae) causing avian infectious encephalomyelitis in young chicks. (05 Mar 2000) |
| avian erythroblastosis | <veterinary> An expression of disease of the avian leukosis-sarcoma complex; characterised by severe anaemia and large numbers of erythroblasts in the blood; chickens are most susceptible but fatal natural infections have been reported in guinea fowl. Synonym: fowl erythroblastosis. (05 Mar 2000) |
| avian erythroblastosis virus | <virology> Group of C type RNA tumour viruses (Oncovirinae) that cause various leukaemias and other tumours in birds. The acute leukaemia viruses, that are replication defective and require helper viruses, include avian erythroblastosis (AEV), myeloblastosis (AMV) and myelo cytomatosis viruses. AEV carries two transforming genes, v erbA and v erbB, the cellular homologue of the latter is the structural gene for the epidermal growth factor receptor. AMV carries v myb and causes a myeloid leukaemia, avian myelocytomatosis virus carries v myc. The avian lymphatic leukaemia viruses (ALV) are also Retroviridae but are replication competent and induce neoplasia only after several months, they often occur in conjunction with replication defective leukaemia viruses. (02 Jan 1998) |
| avian herpesvirus 1 | <virology> A virus causing avian infectious laryngotracheitis in chickens. (05 Mar 2000) |
| avian herpesvirus 2 | <virology> A virus causing Marek's disease in chickens. (05 Mar 2000) |
| avian infectious encephalomyelitis | <veterinary> A disease of very young chicks caused by a picornavirus and characterised by tremor, ataxia, somnolence, and finally death. Synonym: epidemic tremor. (05 Mar 2000) |
| avian infectious laryngotracheitis virus | <virology> A herpesvirus causing avian infectious laryngotracheitis. (05 Mar 2000) |