PMID: 1212101Jan 1, 1975Paper

Relation of virus particle counts to the hemagglutinating activity of influenza virus suspensions measured by the HA pattern test and by use of the photometric HCU method

Archives of Virology
U Desselberger

Abstract

The ratios of the number of virus (n.v.p.) to the hemagglutinating activity were determined for a series of influenza A and B strains using both the photometric HCU method and the HA pattern test. The logarithms of the ratios of n.v.p./hcu ranged from 7.06 to 7.54 and the logarithms of the ratios of n.v.p./HA from 6.87 to 7.56. While the n.v.p./HA ratios of different strains showed significant differences in a number of cases, such differences were not found for the n.v.p./HCU ratios with the only exception of the strain B/Hong Kong/8/73 differing uniformly from the other strains tested. Since the standard deviation of HCU values ranged from 0.006 to 0.039 log units and that of HA titers from 0.076 to 0.272 log units, it was concluded that the differences of n.v.p./HA ratios found were due to the range of variance of HA tests and did not reflect strain specific differences. The degree of purity of virus suspensions was found not to influence measurably the log n.v.p./HCU values.

References

Jun 1, 1954·Journal of General Microbiology·H B DONALD, A ISAACS
Oct 1, 1954·Journal of General Microbiology·H B DONALD, A ISAACS
Aug 1, 1954·The Journal of Experimental Medicine·G H WERNER, R W SCHLESINGER
Jan 1, 1957·Advances in Virus Research·A ISAACS
Jun 1, 1957·Journal of General Microbiology·D A TYRRELL, R C VALENTINE
Apr 1, 1955·Journal of General Microbiology·A ISAACS, H B DONALD
Mar 1, 1944·The Journal of Experimental Medicine·W F Friedewald, E G Pickels

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Citations

Aug 22, 2007·Analytical and Bioanalytical Chemistry·Jie XuDavid S Gottfried
Nov 8, 2012·Journal of Interferon & Cytokine Research : the Official Journal of the International Society for Interferon and Cytokine Research·Christopher P Malinoski, Philip I Marcus
Mar 14, 2012·PloS One·Tijana IvanovicStephen C Harrison
Dec 6, 2011·Journal of Interferon & Cytokine Research : the Official Journal of the International Society for Interferon and Cytokine Research·Christopher P Malinoski, Philip I Marcus
Oct 9, 2018·Chemistry : a European Journal·Pallavi KiranRainer Haag
Jul 1, 2004·Journal of Child Neurology·Heike Losch, Olaf Dammann
Oct 20, 1981·The Journal of Comparative Neurology·R A BurneD J Woodward
Apr 2, 2020·Nature Nanotechnology·Daniel LausterChristian P R Hackenberger
Aug 31, 2002·Virology·Tokiko WatanabeYoshihiro Kawaoka

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