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  • Title: Influence of temperature on the growth in cell culture of malignant catarrhal fever virus.
    Author: Harkness JW, Jessett DM.
    Journal: Res Vet Sci; 1981 Sep; 31(2):164-8. PubMed ID: 7323461.
    Abstract:
    The growth characteristics of malignant catarrhal fever (MCF) virus in bovine thyroid cultures were affected by incubation temperature. The cytopathic effect at 37 degrees C was predominantly syncytial and little or no cell-free virus could be detected. At 32 degrees to 34 degrees C foci of rounded refractile cells were observed, and this was accompanied by an increase in the amount of cell-free virus found in culture fluids. Growth curve studies with one low passage isolate of MCF virus showed that optimum yields of cell-free virus were obtained at 32 degrees to 34 degrees C and survival curves at 32 degrees and 37 degrees C indicated that this was a result of the relatively short half life of the virus at the higher temperature. A number of other benefits resulted from the use of lowered incubation temperature and these are discussed with reference to in vitro work with the virus.
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