| infectious warts | 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) |
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| ectromelia, infectious | A viral infection of mice, causing oedema and necrosis followed by limb loss. (12 Dec 1998) |
| tissue culture infectious dose | The quantity of a cytopathogenic agent, such as a virus, that will produce a cytopathic effect in 50% of the cultures inoculated. (05 Mar 2000) |
| equine infectious anaemia | <veterinary> virology> Viral disease of horses caused by the equine infectious anaemia virus (eiav; infectious anaemia virus, equine). It is characterised by intermittent fever, weakness, and anaemia. Chronic infection consists of acute episodes with remissions. (12 Dec 1998) |
| equine infectious anaemia virus | <virology> A retrovirus, of the Lentivirinae subfamily, and the cause of equine infectious anaemia. Synonym: swamp fever virus. (05 Mar 2000) |
| keratoconjunctivitis, infectious | Infectious diseases of cattle, sheep, and goats, characterised by blepharospasm, lacrimation, conjunctivitis, and varying degrees of corneal opacity and ulceration. In cattle the causative agent is moraxella (moraxella) bovis; in sheep, mycoplasma, rickettsia, chlamydia, or acholeplasma; in goats, rickettsia. (12 Dec 1998) |
| feline infectious anaemia | An acute or chronic anaemia of domestic cats caused by the rickettsia Haemobartonella felis. Synonym: haemobartonellosis. (05 Mar 2000) |
| feline infectious enteritis | A highly contagious and fatal disease of cats, particularly young cats, caused by feline panleukopenia virus, a member of the family Parvoviridae, and manifested by severe leukopenia, prostration, fever, vomiting and diarrhoea. Synonym: distemper, feline agranulocytosis, feline distemper, feline infectious enteritis. (05 Mar 2000) |
| feline infectious peritonitis | Common coronavirus infection of cats caused by the feline infectious peritonitis virus (infectious peritonitis virus, feline). The disease is characterised by a long incubation period, fever, depression, loss of appetite, wasting, and progressive abdominal enlargement. Infection of cells of the monocyte-macrophage lineage appears to be essential in fip pathogenesis. (12 Dec 1998) |
| absolute unit | A unit whose value is constant regardless of place or time and not derived from dependent on gravitation. (05 Mar 2000) |
| alexin unit | The smallest amount (highest dilution) of complement that will cause haemolysis of a unit of red blood cells in the presence of a haemolysin unit. Synonym: alexin unit. (05 Mar 2000) |
| Allen-Doisy unit | The quantity of oestrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone unit. Synonym: mouse unit. (05 Mar 2000) |
| amboceptor unit | haemolysin unit |
| androgen unit | The androgenic activity of 100 ug (0.1 mg) of crystalline androsterone as assayed by the comb growth response in capons. (05 Mar 2000) |
| antigen unit | The smallest amount of antigen that, in the presence of specific antiserum, will fix 1 complement unit. (05 Mar 2000) |