Abstract
THE method described by Hirst1 for the estimation of the hæmagglutinating activity of influenza virus suspensions and its modifications depend on gravity as the main operative force, which either determines the degree of clearance of the suspensions1, or promotes the development of typical patterns at the bottom of the tubes2.
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References
Hirst, G. K., J. Exp. Med., 75, 49 (1942).
Salk, J. E., J. Immunol., 49, 87 (1944).
Green, R. H., and Woolley, D. W., J. Exp. Med., 86, 55 (1947).
Personnel of U.S. Navy Lab. Res. Unit No. 1, U.S. Nav. M. Bull., 41, 114 (1943).
Prandtl, L., “Abriss der Stroemungslehre", 103 (F. Vieweg und Sohn, 1931).
Magath, T. B., J. Lab. and Clin. Med., 18, 83 (1932).
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HIMMELWEIT, F. Rapid Assessment of Virus Hæmagglutinin by the Aid of Centrifugal and Centripetal Effects. Nature 164, 650–651 (1949). https://doi.org/10.1038/164650a0
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DOI: https://doi.org/10.1038/164650a0
