Influenza in the Ussr: New Antigenic Variant A2/Hong Kong/1/68 and Its Possible Precursors

Zakstel'skaja, L. Ja.; Evstigneeva, N. A.; Isachenko, V. A.; Shenderovitch, S. Ph.; Efimova, V. A.

doi:10.1093/oxfordjournals.aje.a121085

Cited by 22 publications

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“…Most of the small number of specimens from individuals aged 80 years or more contained HI antibody to influenza virus A 2/Hong Kong 1/68, and this result is in agreement with previous findings (Masurel, 1969;Marine & Workman, 1969;Zakstelskaja, 1969). The presence of pre-epidemic HI antibody to A 2/Hong Kong/ 1/68 in this age group has been interpreted as evidence of influenza infection by a virus antigenically similar to or identical with this influenza virus in the years 1890-5 (Davenport, Minuse, Hennessy & Francis, 1969).…”

Section: Discussionsupporting

confidence: 91%

Changes in the antibody status of a population following epidemic infection by influenza virus A2/Hong Kong/1/68

Machin

Potter

Oxford

1970

J. Hyg.

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SUMMARYThe haemagglutinin of influenza virus A2/Hong Kong/1/68 was shown to be markedly different from that of previously isolated A 2 virus strains. No haemagglutination-inhibiting (HI) antibody to A2/Hong Kong/1/68 virus was detected in serum specimens collected in 1966 from persons aged 60 years or less. In contrast, HI antibody tests with 270 sera collected in 1968 indicated that 9-6 % had demonstrable HI antibody at low titres, and 35*2 % of 454 postepidemic (1969) sera had demonstrable HI antibody at relatively high titres. Most sera from persons aged 80 years and more collected in 1968 and 1969 had demonstrable HI antibody to influenza virus A 2/Hong Kong/1/68. No HI antibody to the Hong Kong virus was detected in pre-epidemic sera from children aged 6 months to 3 years, whereas 32 % of postepidemic sera had HI antibody. The acquisition of HI antibody to A2/Hong Kong/1/68 was not accompanied by an increase in the incidence or titres of HI antibody to heterotypic A2 influenza viruses. For sera from children aged 4-11 years, an increase of HI titre to heterotypic A 2 influenza was found.

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Section: Discussionsupporting

confidence: 91%

Changes in the antibody status of a population following epidemic infection by influenza virus A2/Hong Kong/1/68

Machin

Potter

Oxford

1970

J. Hyg.

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“…The majority of this information has been published and is summarized in Table 2. Thus, serological evidence shows that the isolated hemagglutinin molecules of H3, Hay7 and Heq2 are closely related [2,3,4]. Maps of the tryptic peptides of the isolated hemagglutinin molecules from H3, Hay7 and Heq2 show marked similarities between the HA2 polypeptide and general similarity between the HA1 polypeptides.…”

Section: Evidence For Recombination Between Human Influenza Viruses A...mentioning

confidence: 96%

Antigenic shift in myxoviruses

Hinshaw

1977

Med Microbiol Immunol

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Influenza Viruses

Davenport

1982

Viral Infections of Humans

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Influenza in the Ussr: New Antigenic Variant A2/Hong Kong/1/68 and Its Possible Precursors

Cited by 22 publications

References 0 publications

Changes in the antibody status of a population following epidemic infection by influenza virus A2/Hong Kong/1/68

Changes in the antibody status of a population following epidemic infection by influenza virus A2/Hong Kong/1/68

Antigenic shift in myxoviruses

Influenza Viruses

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