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Studies on the origin of pandemic influenza viruses

Identifieur interne : 000495 ( Istex/Corpus ); précédent : 000494; suivant : 000496

Studies on the origin of pandemic influenza viruses

Auteurs : Robert G. Webster ; W. G. Laver ; Bela Tumova

Source :

RBID : ISTEX:8B86E2D39ED6227CE23CD3A1C599B254F148A777

English descriptors

Abstract

Abstract: The hemagglutinin subunits of two strains of avian influenza virus isolated from ducks in 1972 and 1973 were shown to cross react with the hemagglutinin subunits of the Asian 1957 strain of human influenza virus in hemagglutination-inhibition and immunodiffusion tests. The duck and human viruses possessed “common” and “specific” antigenic determinants on their hemagglutinin (HA) subunits. The duck viruses, which differed in neuraminidase antigens, were designated A/duck/GDR/72 (H2 Nav?) and A/duck/1215/73 (H2 Nav2). Peptide maps of the polypeptide chains (HA1 and HA2) from the hemagglutinin subunits of Asian/57 influenza virus and the duck/Germany/1215/73 strain showed similarities suggesting that some similar amino acid sequences occurred in the HA subunits of the avian and human viruses. On the strength of these results, we postulate a group of avian influenza viruses with hemagglutinin subunits related to those of the 1957 Asian influenza virus and possibly also to those of the virus that caused the influenza epidemic in 1889. In each case one of these avian viruses may have served as the donor of the hemagglutinin subunits for the formation of the human pandemic influenza strain.

Url:
DOI: 10.1016/0042-6822(75)90453-5

Links to Exploration step

ISTEX:8B86E2D39ED6227CE23CD3A1C599B254F148A777

Le document en format XML

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<ce:simple-para>The hemagglutinin subunits of two strains of avian influenza virus isolated from ducks in 1972 and 1973 were shown to cross react with the hemagglutinin subunits of the Asian 1957 strain of human influenza virus in hemagglutination-inhibition and immunodiffusion tests. The duck and human viruses possessed “common” and “specific” antigenic determinants on their hemagglutinin (HA) subunits. The duck viruses, which differed in neuraminidase antigens, were designated A/duck/GDR/72 (H2 Nav?) and A/duck/1215/73 (H2 Nav2). Peptide maps of the polypeptide chains (HA1 and HA2) from the hemagglutinin subunits of Asian/57 influenza virus and the duck/Germany/1215/73 strain showed similarities suggesting that some similar amino acid sequences occurred in the HA subunits of the avian and human viruses. On the strength of these results, we postulate a group of avian influenza viruses with hemagglutinin subunits related to those of the 1957 Asian influenza virus and possibly also to those of the virus that caused the influenza epidemic in 1889. In each case one of these avian viruses may have served as the donor of the hemagglutinin subunits for the formation of the human pandemic influenza strain.</ce:simple-para>
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<subTitle>V. Persistence of Asian influenza virus hemagglutinin (H2) antigen in nature?</subTitle>
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<title>Studies on the origin of pandemic influenza viruses</title>
<subTitle>V. Persistence of Asian influenza virus hemagglutinin (H2) antigen in nature?</subTitle>
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<namePart type="given">Robert G.</namePart>
<namePart type="family">Webster</namePart>
<affiliation>St. Jude Children's Research Hospital, P. O. Box 318, Memphis, Tennessee 38101 USA</affiliation>
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<affiliation>John Curtin Medical School, Australian National University, Canberra City, Australia</affiliation>
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<namePart type="given">Bela</namePart>
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<affiliation>Institute of Epidemiology and Microbiology, Czechoslovak Influenza Center, Srobarova 48, Prague 10, Czechoslovakia</affiliation>
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<abstract lang="en">Abstract: The hemagglutinin subunits of two strains of avian influenza virus isolated from ducks in 1972 and 1973 were shown to cross react with the hemagglutinin subunits of the Asian 1957 strain of human influenza virus in hemagglutination-inhibition and immunodiffusion tests. The duck and human viruses possessed “common” and “specific” antigenic determinants on their hemagglutinin (HA) subunits. The duck viruses, which differed in neuraminidase antigens, were designated A/duck/GDR/72 (H2 Nav?) and A/duck/1215/73 (H2 Nav2). Peptide maps of the polypeptide chains (HA1 and HA2) from the hemagglutinin subunits of Asian/57 influenza virus and the duck/Germany/1215/73 strain showed similarities suggesting that some similar amino acid sequences occurred in the HA subunits of the avian and human viruses. On the strength of these results, we postulate a group of avian influenza viruses with hemagglutinin subunits related to those of the 1957 Asian influenza virus and possibly also to those of the virus that caused the influenza epidemic in 1889. In each case one of these avian viruses may have served as the donor of the hemagglutinin subunits for the formation of the human pandemic influenza strain.</abstract>
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