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Role of Desquamated Epithelial Cells in Transmission of Marek's Disease

J. H. Carrozza, T. N. Fredrickson, R. P. Prince and R. E. Luginbuhl
Avian Diseases
Vol. 17, No. 4 (Oct. - Dec., 1973), pp. 767-781
DOI: 10.2307/1589045
Stable URL: http://www.jstor.org/stable/1589045
Page Count: 15
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Role of Desquamated Epithelial Cells in Transmission of Marek's Disease
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Abstract

Particulate material, referred to as poultry dust, from air in pens containing chickens can be easily caught in effluent air ducts. Morphologically identified constituents of such material were examined for infectious Marek's disease virus (MDV) after partial purification. Methods used to achieve this separation are described, as are results of bioassays for MDV. In addition, the infectivity of the poultry dust was tested after different periods of storage at temperatures ranging from -180C to +37C. It remained infective for at least 200 days at room temperature, freezing extended the infectivity period, and desquamated epidermal cells were implicated as carriers of MDV although dust probably contained free virions as well. Infectious MDV became detectable in dust at the same time antigen was demonstrable within feather follicles by immunofluorescence.

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