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Marek's disease is a highly contagious viral neoplastic disease in chickens.It is named after József Marek, a Hungarian veterinarian who described it in 1907.Marek's disease is caused by an alphaherpesvirus known as "Marek's disease virus" (MDV) or Gallid alphaherpesvirus 2 (GaHV-2). [2]
Chickens, turkeys, and quail serve as natural hosts. There are six species in this genus. Diseases associated with this genus include: Marek's disease, which causes asymmetric paralysis of one or more limbs, neurological symptoms, and development of multiple lymphomas that manifest as solid tumors.
Reticuloendotheliosis virus represents a third distinct etiological group of avian viral neoplasms, after Marek's disease and avian leukosis virus. The various syndromes caused by REV resemble both Marek's and avian leukosis. It is especially seen in chickens, quail, geese, ducks, and turkeys. [2]
The Merck Manuals (outside the U.S. and Canada: The MSD Manuals; Chinese: 默沙东诊疗手册; pinyin: Mòshādōng Zhěnliáo Shǒucè) are medical references published by the American pharmaceutical company Merck & Co. (known as MSD outside the United States and Canada), that cover a wide range of medical topics, including disorders, tests, diagnoses, and drugs.
Radiography is an important tool in diagnosis of certain disorders. Medical diagnosis (abbreviated Dx, [1] D x, or D s) is the process of determining which disease or condition explains a person's symptoms and signs. It is most often referred to as a diagnosis with the medical context being implicit.
The best known cases of vaccine resistance are for the following diseases animal diseases Marek's disease where actually more virulent strains emerged after vaccination [6] [7] because the vaccine did not protect against infection and transmission, only against serious forms of the disease
Marek is the West Slavic (Czech, Polish and Slovak) masculine equivalent of Marcus, Marc or Mark.The name may refer to: Marek (given name) Marek (surname) Marek, the pseudonym of Bulgarian communist Stanke Dimitrov (1889–1944)
Marburg virus disease (MVD), formerly Marburg hemorrhagic fever (MHF) is a viral hemorrhagic fever in human and non-human primates caused by either of the two Marburgviruses: Marburg virus (MARV) and Ravn virus (RAVV). [3] Its clinical symptoms are very similar to those of Ebola virus disease (EVD). [1]