HENLE W, ROSENBERG EB. One-step growth curves of various strains of influenza A and B viruses and their inhibition by inactivated virus of the homologous type.
ACTA ACUST UNITED AC 2007;
89:279-85. [PMID:
18110882 PMCID:
PMC2135868 DOI:
10.1084/jem.89.3.279]
[Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
One-step growth curves of five strains of influenza A, one strain of swine influenza, and three strains of influenza B virus have been analyzed. The influenza A and swine influenza strains showed constant periods of 5 to 6 hours before newly formed virus was liberated from the infected cells, whereas 8 to 10 hours elapsed in the case of the influenza B strains. The yield of virus in the allantoic fluids, i.e. the number of ID50 released for every ID50 of seed virus adsorbed, was consistently higher in the case of the influenza A and swine influenza strains than in that of the influenza B viruses. Interruption of the cycle by injection of inactivated virus subsequent to infection can be achieved by any of the strains of the homologous type. However, cross-tests between influenza A and swine influenza virus led only to partial inhibition of virus growth.
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