| PHN | paroxysmal noctural hemoglobinuria; passive Heymann nephritis; postherpetic neuralgia; public health... |
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| PNH | paroxysmal nocturnal hemoglobinuria; polynuclear hydrocarbon |
| EKC | Epidemic Kerato-Conjunctivitis |
| EHAA | epidemic hepatitis-associated antigen |
| EHF | epidemic hemorrhagic fever; exophthalmos-hyperthyroid factor; extreme high frequency |
| infectious papilloma of cattle | Single or multiple rough nodules on the skin and mucous membranes caused by a papillomavirus; in young cattle, which are most susceptible, they are most numerous on the head, neck, and shoulders; in cows they usually affect the udder and teats. Synonym: cattle warts. (05 Mar 2000) |
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| Eimeria of cattle | Eimeria zuernii, the species most often associated with clinical cases of coccidiosis in calves and young adults; found in the caecum and lower bowel, and sometimes in the small intestine. Eimeria bovis, a species that occurs principally in the small intestine causes clinically recognizable disease; many less common species have been described. Synonym: coccidia of cattle. (05 Mar 2000) |
| ephemeral fever of cattle | An acute febrile disease of cattle in many African and Asian countries and Australia, caused by a rhabdovirus and characterised by stiffness and lameness. Synonym: bovine ephemeral fever. (05 Mar 2000) |
| 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) |
| encephalitis, epidemic | A viral encephalitis caused by encephalitis viruses, all arboviruses. The severity of the encephalitis depends upon which virus strain causes the infection. The viruses are maintained by inapparent zoonoses in birds and lower vertebrates, and are transmitted to humans via arthropod vectors. (12 Dec 1998) |
| epidemic | <epidemiology> Occurring suddenly in numbers clearly in excess of normal expectancy, said especially of infectious diseases but applied also to any disease, injury or other health related event occurring in such outbreaks. Compare: endemic, sporadic. Origin: Gr. Epidemios = prevalent (13 Nov 1997) |