| bovine virus diarrhoea | A specific infectious disease of cattle, caused by a togavirus; characterised by ulceration of the mouth, pharynx, oesophagus, and sometimes the stomachs and intestines; may or may not be accompanied by severe diarrhoea. Synonym: mucosal disease. (05 Mar 2000) |
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| bovine virus diarrhoea-mucosal disease | Acute disease of cattle caused by the bovine viral diarrhoea virus (diarrhoea virus, bovine viral). Often mouth ulcerations are the only sign but fever, diarrhoea, drop in milk yield, and loss of appetite are also seen. Mortality is high in animals showing clinical signs, especially diarrhoea. (12 Dec 1998) |
| papilloma virus, bovine | A species of papilloma virus producing large numbers of warts on calves. Connective tissue proliferation is an important component of the warts. (12 Dec 1998) |
| respiratory syncytial virus, bovine | A species of pneumovirus causing an important respiratory infection in cattle. Symptoms include fever, conjunctivitis, and respiratory distress. (12 Dec 1998) |
| herpes virus 1, bovine | A species of varicellovirus that causes rhinotracheitis in cattle. (12 Dec 1998) |
| herpes virus 2, bovine | A species of simplexvirus causing mammillitis in cattle in great britain and south africa. (12 Dec 1998) |
| 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) |
| immunodeficiency virus, bovine | A species of lentivirus, subgenus bovine lentiviruses (lentiviruses, bovine), found in cattle and causing lymphadenopathy, lymphocytosis, central nervous system lesions, progressive weakness, and emaciation. It has immunological cross-reactivity with other lentiviruses including HIV. (12 Dec 1998) |
| infectious anaemia virus, equine | A species of lentivirus, subgenus equine lentiviruses (lentiviruses, equine), causing acute and chronic infection in horses. It is transmitted mechanically by biting flies, mosquitoes, and midges, and iatrogenically through unsterilised equipment. Chronic infection often consists of acute episodes with remissions. (12 Dec 1998) |
| infectious arteritis virus of horses | <virology> A virus of the genus Pestivirus, a member of the family Togaviridae, that causes equine viral arteritis. It is probably the most common cause of equine influenza and an important equine respiratory disease frequently causing abortion, pneumonia, or other infections. Synonym: infectious arteritis virus of horses. (05 Mar 2000) |
| infectious bronchitis virus | An RNA virus of the family Coronaviridae and the type species of the genus Coronavirus, causing infectious avian bronchitis, being most pathogenic in chicks up to about 4 weeks of age; not to be confused with avian infectious laryngotracheitis virus. (05 Mar 2000) |
| infectious bronchitis virus, avian | A species of coronavirus causing infections in chickens and possibly pheasants. Chicks up to 4 weeks old are the most severely affected. (12 Dec 1998) |
| infectious bursal disease virus | A species of avibirnavirus causing severe inflammation of the bursa of fabricius in chickens and other fowl. Transmission is thought to be through contaminated feed or water. Vaccines have been used with varying degrees of success. (12 Dec 1998) |
| infectious ectromelia virus | A virus belonging to the family Poxviridae morphologically similar to vaccinia virus, which occurs as a latent infection in laboratory mice, but which may be activated by stresses such as irradiation and transport to cause disease; inoculation into the footpad results in oedema and necrosis. Synonym: ectromelia virus, mousepox virus, pseudolymphocytic choriomeningitis virus. (05 Mar 2000) |
| infectious hepatitis virus | <virology> An RNA virus (hepatovirus) in the family Picornaviridae, that is the causative agent of viral hepatitis type A. The virus replicates in hepatocytes and is presumed to reach the intestine via the bile duct. Transmission occurs by the faecal-oral route. Synonym: infectious hepatitis virus. (20 Sep 2002) |