Recent examples of human infection by animal and avian influenza a viruses in Hong Kong
Identifieur interne : 001820 ( Main/Exploration ); précédent : 001819; suivant : 001821Recent examples of human infection by animal and avian influenza a viruses in Hong Kong
Auteurs : Y. P Lin [Royaume-Uni] ; W. Lim [République populaire de Chine] ; V. Gregory [Royaume-Uni] ; K. Cameron [Royaume-Uni] ; M. Bennett [Royaume-Uni] ; A. Hay [Royaume-Uni]Source :
- International congress series [ 0531-5131 ] ; 2001.
English descriptors
- Teeft :
- Amino acids, Avian, Avian viruses, Direct transmission, Domestic poultry, Elsevier science, European pigs, Genetic characteristics, Genetic reassortment, Homology, Hong kong, Human infection, Human infections, Human population, Human viruses, Intermediate host, Internal genes, International congress series, Interspecies transmission, Lineage, Nucleotide sequences, Other viruses, Personal communication, Quail, Reassortment, Saudi arabia, Sequence homology, Shortridge, Similar viruses, Striking similarity, Subtypes, Swine, Swine virus, Swine viruses, Virus.
Abstract
Abstract: Recent intensive surveillance in Hong Kong resulted in the detection of two novel viruses in children during 1999—two cases of infection by an H9N2 avian virus in March and a single case of infection by an H3N2 swine virus in September. The two human H9N2 isolates are similar in antigenic and genetic characteristics to an H9N2 virus isolated from a quail in late 1997, but are antigenically distinct from other lineages of H9N2 viruses circulating in other species of birds as well as those isolated from pigs during 1998. It is likely, therefore, that as for the H5N1 viruses in 1997, these infections are the result of direct avian-to-human transmission. A striking similarity between the six internal genes of the H9N2 and H5N1 human isolates indicates that they are related by reassortment. The H3N2 virus A/HK/1774/99 is distinct from contemporary human H3N2 viruses and is similar in antigenic and genetic properties to H3N2 viruses recently circulating in pigs in Europe. Although the source of infection was not traced, the likely presence of similar viruses in pigs in Hong Kong has subsequently been confirmed. These two instances provide further evidence for the direct transfer of avian and swine viruses in causing human disease and highlights the potential for emergence, either by adaptation or genetic reassortment with a circulating human strain, of a novel human pathogen.
Url:
DOI: 10.1016/S0531-5131(01)00379-X
Affiliations:
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Bennett</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Institute for Medical Research, The Ridgeway, Mill Hill, London, NW7 1AA</wicri:regionArea><wicri:noRegion>NW7 1AA</wicri:noRegion></affiliation></author><author><name sortKey="Hay, A" sort="Hay, A" uniqKey="Hay A" first="A" last="Hay">A. Hay</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Institute for Medical Research, The Ridgeway, Mill Hill, London, NW7 1AA</wicri:regionArea><wicri:noRegion>NW7 1AA</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">International congress series</title><title level="j" type="abbrev">ICS</title><idno type="ISSN">0531-5131</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001">2001</date><biblScope unit="volume">1219</biblScope><biblScope unit="supplement">C</biblScope><biblScope unit="page" from="179">179</biblScope><biblScope unit="page" to="185">185</biblScope></imprint><idno type="ISSN">0531-5131</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0531-5131</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Amino acids</term><term>Avian</term><term>Avian viruses</term><term>Direct transmission</term><term>Domestic poultry</term><term>Elsevier science</term><term>European pigs</term><term>Genetic characteristics</term><term>Genetic reassortment</term><term>Homology</term><term>Hong kong</term><term>Human infection</term><term>Human infections</term><term>Human population</term><term>Human viruses</term><term>Intermediate host</term><term>Internal genes</term><term>International congress series</term><term>Interspecies transmission</term><term>Lineage</term><term>Nucleotide sequences</term><term>Other viruses</term><term>Personal communication</term><term>Quail</term><term>Reassortment</term><term>Saudi arabia</term><term>Sequence homology</term><term>Shortridge</term><term>Similar viruses</term><term>Striking similarity</term><term>Subtypes</term><term>Swine</term><term>Swine virus</term><term>Swine viruses</term><term>Virus</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Recent intensive surveillance in Hong Kong resulted in the detection of two novel viruses in children during 1999—two cases of infection by an H9N2 avian virus in March and a single case of infection by an H3N2 swine virus in September. The two human H9N2 isolates are similar in antigenic and genetic characteristics to an H9N2 virus isolated from a quail in late 1997, but are antigenically distinct from other lineages of H9N2 viruses circulating in other species of birds as well as those isolated from pigs during 1998. It is likely, therefore, that as for the H5N1 viruses in 1997, these infections are the result of direct avian-to-human transmission. A striking similarity between the six internal genes of the H9N2 and H5N1 human isolates indicates that they are related by reassortment. The H3N2 virus A/HK/1774/99 is distinct from contemporary human H3N2 viruses and is similar in antigenic and genetic properties to H3N2 viruses recently circulating in pigs in Europe. Although the source of infection was not traced, the likely presence of similar viruses in pigs in Hong Kong has subsequently been confirmed. These two instances provide further evidence for the direct transfer of avian and swine viruses in causing human disease and highlights the potential for emergence, either by adaptation or genetic reassortment with a circulating human strain, of a novel human pathogen.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li><li>République populaire de Chine</li></country></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Lin, Y P" sort="Lin, Y P" uniqKey="Lin Y" first="Y. P" last="Lin">Y. P Lin</name></noRegion><name sortKey="Bennett, M" sort="Bennett, M" uniqKey="Bennett M" first="M" last="Bennett">M. Bennett</name><name sortKey="Cameron, K" sort="Cameron, K" uniqKey="Cameron K" first="K" last="Cameron">K. Cameron</name><name sortKey="Gregory, V" sort="Gregory, V" uniqKey="Gregory V" first="V" last="Gregory">V. Gregory</name><name sortKey="Hay, A" sort="Hay, A" uniqKey="Hay A" first="A" last="Hay">A. Hay</name><name sortKey="Lin, Y P" sort="Lin, Y P" uniqKey="Lin Y" first="Y. P" last="Lin">Y. P Lin</name></country><country name="République populaire de Chine"><noRegion><name sortKey="Lim, W" sort="Lim, W" uniqKey="Lim W" first="W" last="Lim">W. Lim</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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