| common-source epidemic | <microbiology> An epidemic resulting from infection of a large number of people from a single contaminated source. (09 Oct 1997) |
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| point source | In photometry, a very small source of light which is regarded as a geometrical point from which light emanates in straight lines in all directions. (05 Mar 2000) |
| 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) |
| carbon source | Any carbon-containing organic molecule (carbohydrate, aminoacid) that an organism can use to produce energy in the form of ATP. (09 Oct 1997) |
| major source | A source that emits, or has the potential to emit, a pollutant regulated under the Clean Air act in excess of a specified rate in a nonattainment area. (05 Dec 1998) |
| power source | Devices that supply energy. (12 Dec 1998) |
| source emission reduction plan | (SERP) A contingency plan developed to reduce emissions during an air quality emergency. (05 Dec 1998) |
| 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) |
| 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) |
| 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) |