| VA | vacuum aspiration; valproic acid; vasodilator agent; ventricular aneurysm; ventricular arrhythmia; v... |
|---|---|
| VAF | viral-free antigen |
| VAS | vascular; ventriculo-atrial shunt; Verapamil Angioplasty Study; vesicle attachment site; viral arthr... |
| VCA | vancomycin, colistin, and anisomycin; viral capsid antigen |
| VCSA | viral cell surface antigen |
| 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) |
| cytopathogenic effect, viral | Visible morphologic changes in cells infected with viruses. It includes shutdown of cellular RNA and protein synthesis, cell fusion, release of lysosomal enzymes, changes in cell membrane permeability, diffuse changes in intracellular structures, presence of viral inclusion bodies, and chromosomal aberrations. It excludes malignant transformation, which is cell transformation, viral. Viral cytopathogenic effects provide a valuable method for identifying and classifying the infecting viruses. (12 Dec 1998) |
| hepatitis, viral | Liver inflammation caused by viruses. Specific hepatitis viruses have been labelled a, b, c, d, e, f, and g. While other viruses, such as the mononucleosis (epstein-barr) virus and cytomegalovirus, can also cause hepatitis, the liver is not their primary target. (12 Dec 1998) |
| hepatitis, viral, animal | Viral hepatitis in animals. (12 Dec 1998) |
| hepatitis, viral, human | Viral hepatitis in man. (12 Dec 1998) |
| sexually transmitted diseases, viral | Viral diseases which are transmitted or propagated by sexual conduct. (12 Dec 1998) |
| skin diseases, viral | Skin diseases caused by viruses. (12 Dec 1998) |
| nasopharyngeal viral culture | <microbiology> A collection of nasopharyngeal secretions for the purpose of incubating a virus for identification. (27 Sep 1997) |
| diarrhoea virus, bovine viral | The type species of the pestivirus genus causing diarrhoea, fever, oral ulcerations, and various necrotic lesions among cattle and other domestic animals. (12 Dec 1998) |