| Marek's disease virus |
a group of serologically related viruses in the family Herpesviridae, comprising three serotypes: type 1, which contains all pathogenic strains, type 2, which contains nonpathogenic strains infecting chickens, and type 3, which contains nonpathogenic strains infecting turkeys. See also gallid herpesvirus 2 and gallid herpesvirus 3, under herpesvirus.
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| Marek's d. |
a lymphoproliferative disease of chickens, formerly included in the avian leukosis complex but now known to be caused by gallid herpesvirus 2. Lymphoid cell infiltrations are most common in the peripheral nerves and gonads, but widespread infiltrations may also be found in visceral organs, skin, muscle, and the iris; there is also frequently perivascular cuffing of blood vessels in the central nervous system. The location of the lesions dictates the clinical signs, such as paralysis, general depression, or blindness. When neurological symptoms predominate, it may be called fowl or range paralysis, neural lymphomatosis, or neurolymphomatosis gallinarum. When ocular or skin symptoms predominate, it may be called respectively ocular lymphomatosis and skin leukosis.
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| Marek's disease |
see under disease.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Marek's disease h. 1 |
gallid h. 2.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Marek's disease h. 2 |
gallid h. 3.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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