| GPIPID | guinea pig intraperitoneal infectious dose |
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| HID | headache, insomnia, depression [syndrome]; herniated intervertebral disc; human infectious dose; hyp... |
| HIM | hepatitis-infectious mononucleosis; hexosephosphate isomerase |
| IAA | imidazoleacetic acid; indoleacetic acid; infectious agent, arthritis; insulin autoantibody; Internat... |
| IB | idiopathic blepharospasm; immune body; inclusion body; index of body build; infectious bronchitis; I... |
| spot test for infectious mononucleosis | A slide test widely used for the diagnosis of infectious mononucleosis, based on the principle that the heterophil antibodies that occur in the serum of patients with infectious mononucleosis are absorbed by beef red cells but not by guinea pig kidney cells; thus, when horse red cells (which provoke heterophil antibodies) are mixed with patient serum and agglutination occurs in the presence of beef red cells, the presumptive diagnosis is infectious mononucleosis. (05 Mar 2000) |
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| necrotic infectious conjunctivitis | A unilateral, suppurative, necrotic inflammation of the conjunctiva characterised by scattered, elevated white spots in the fornices and palpebral conjunctiva, and ipsilateral swelling of preauricular, parotid, and submaxillary lymph glands. Synonym: Pascheff's conjunctivitis. (05 Mar 2000) |
| 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) |
| immunization, infectious hepatitis | See Immunization, hepatitis a. (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 | 1. Capable of being transmitted by infection, with or without actual contact. Synonym: infective. 3. Denoting a disease due to the action of a microorganism. (05 Mar 2000) |
| infectious anaemia | Anaemia developing as a complication of infection; probably results from depressed formation and short survival of erythrocytes and abnormal iron metabolism. (05 Mar 2000) |
| 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 avian bronchitis | A specific infectious disease of young birds, caused by infectious bronchitis virus, a member of Coronaviridae, and associated with blocking of respiratory passages by exudate; it is highly transmissible, and often causes heavy losses of young chicks and heavy production losses among older laying birds. Synonym: gasping disease. (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 bulbar paralysis | A highly contagious herpes virus infection affecting the central nervous system of swine, cattle, dogs, cats, rats, and other animals. (12 Dec 1998) |
| infectious bursal disease | A highly contagious acute disease of chickens caused by the infectious bursal disease virus and characterised by whitish diarrhoea, dehydration, prostration, and destruction of the bursa of Fabricius, compromising the bird's immune system. Synonym: Gumboro disease. (05 Mar 2000) |
| 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) |