Summary
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1.
Storage at 37° C induced varying degrees of impairing of the hemagglutination and infectivity powers of the strains of Newcastle disease and fowl-plague viruses used in this investigation.
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2.
The agglutination and infectivity powers of virus strains being tested were completely destroyed when exposed to 60° C for 5 minutes.
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3.
The hemagglutination activities of all strains of Newcastle disease virus used in this investigation were easily destroyed by high temperature than those of fowl-plague virus.
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4.
A certain property of a particular virus may be possessed by some but not by all of its strains.
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Tolba, M.K., Eskarous, J.K. Effect of temperature on the hemagglutination activities and infectivity to chick embryos of different strains of Newcastle disease and fowl-plague viruses. Archiv für Mikrobiologie 43, 234–244 (1962). https://doi.org/10.1007/BF00405966
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DOI: https://doi.org/10.1007/BF00405966