| malignant catarrh | A herpes virus infection of cattle characterised by catarrhal inflammation of the upper respiratory and alimentary epithelia, keratoconjunctivitis, encephalitis and lymph node enlargement. Syn: bovine epitheliosis, snotsiekte. (12 Dec 1998) |
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| malignant catarrh of cattle | A highly fatal, sporadic disease of cattle caused by alcelaphine herpesvirus 1 (a member of the Herpesviridae family) and characterised by inflammation, ulceration, and exudation of the oral and upper respiratory mucous membranes, and sometimes eye lesions and nervous system disturbances. Synonym: malignant catarrh of cattle. (05 Mar 2000) |
| vernal catarrh | A chronic, bilateral conjunctival inflammation with photophobia and intense itching that recurs seasonally during warm weather; characterised in the palpebral form by cobblestone papillae in the upper palpebral conjunctiva and in the bulbar form by gelatinous nodules adjacent to the corneoscleral limbus. Synonym: allergic conjunctivitis, spring conjunctivitis, spring ophthalmia, vernal catarrh, vernal keratoconjunctivitis. (05 Mar 2000) |
| catarrh | <otolaryngology> Inflammation of a mucous membrane, with a free discharge (Hippocrates), especially such inflammation of the air passages of the head and throat. Origin: L. Catarrhus, Gr. Katarrhein = to flow down (16 Mar 1998) |
| nasal catarrh | <pathology> Inflammation of the mucous membrane of the nose. (18 Nov 1997) |
| acute epidemic conjunctivitis | An obsolete term for an acute conjunctivitis marked by intense hyperaemia and profuse mucopurulent discharge. Synonym: acute epidemic conjunctivitis, pinkeye. (05 Mar 2000) |
| acute epidemic leukoencephalitis | A disease characterised by acute onset of fever, followed by convulsions, delirium, and coma, and associated with perivascular demyelination and haemorrhagic foci in the central nervous system. Synonym: acute primary haemorrhagic meningoencephalitis, Strumpell's disease. (05 Mar 2000) |
| behavioural epidemic | An epidemic originating in behavioural patterns (in contrast to invading microorganisms); examples include medieval dancing mania, episodes of crowd panic. (05 Mar 2000) |
| person to person epidemic | An epidemic resulting from person to person contact, characterised by a gradual rise and fall in number of cases. (09 Oct 1997) |
| common-source epidemic | <microbiology> An epidemic resulting from infection of a large number of people from a single contaminated source. (09 Oct 1997) |
| pleurodynia, epidemic | An acute, febrile, infectious disease generally occurring in epidemics, most often seen in persons under the age of 20. It is usually caused by coxsackie viruses b and sometimes by coxsackie viruses a, echoviruses, and other enteroviruses. (12 Dec 1998) |
| point epidemic | An epidemic where a pronounced clustering of cases of disease occurs within a very short period of time (within a few days or even hours) due to exposure of persons or animals to a common source of infection such as food or water. (05 Mar 2000) |
| porcine epidemic diarrhoea | A disease of pigs caused by the porcine epidemic diarrhoea virus and characterised by acute diarrhoea, with high mortality in piglets. (05 Mar 2000) |
| porcine epidemic diarrhoea virus | A coronavirus causing porcine epidemic diarrhoea in pigs. (05 Mar 2000) |
| outbreak epidemic | A localised epidemic. (05 Mar 2000) |