Population Serologic Immunity to Human and Avian H2N2 Viruses in the United States and Hong Kong for Pandemic Risk Assessment
Identifieur interne : 000166 ( Main/Merge ); précédent : 000165; suivant : 000167Population Serologic Immunity to Human and Avian H2N2 Viruses in the United States and Hong Kong for Pandemic Risk Assessment
Auteurs : Tara M. Babu [États-Unis] ; Ranawaka A P M. Perera ; Joseph T. Wu ; Theresa Fitzgerald [États-Unis] ; Carolyn Nolan [États-Unis] ; Benjamin J. Cowling ; Scott Krauss [États-Unis] ; John J. Treanor [États-Unis] ; Malik PeirisSource :
- The Journal of Infectious Diseases [ 0022-1899 ] ; 2018.
Descripteurs français
- KwdFr :
- Adolescent, Adulte, Adulte d'âge moyen, Animaux, Démographie, Enfant, Enfant d'âge préscolaire, Femelle, Grippe humaine (immunologie), Grippe humaine (virologie), Grippe humaine (épidémiologie), Hong Kong (épidémiologie), Humains, Immunité, Jeune adulte, Mâle, Nourrisson, Pandémies, Sous-type H2N2 du virus de la grippe A (immunologie), Sous-type H2N2 du virus de la grippe A (isolement et purification), Sujet âgé, Sujet âgé de 80 ans ou plus, État de New York (épidémiologie), Études séroépidémiologiques, Évaluation des risques.
- MESH :
- immunologie : Grippe humaine, Sous-type H2N2 du virus de la grippe A.
- isolement et purification : Sous-type H2N2 du virus de la grippe A.
- virologie : Grippe humaine.
- épidémiologie : Grippe humaine, Hong Kong, État de New York.
- Adolescent, Adulte, Adulte d'âge moyen, Animaux, Démographie, Enfant, Enfant d'âge préscolaire, Femelle, Humains, Immunité, Jeune adulte, Mâle, Nourrisson, Pandémies, Sujet âgé, Sujet âgé de 80 ans ou plus, Études séroépidémiologiques, Évaluation des risques.
- Wicri :
- geographic : Hong Kong.
English descriptors
- KwdEn :
- Adolescent, Adult, Aged, Aged, 80 and over, Animals, Child, Child, Preschool, Demography, Female, Hong Kong (epidemiology), Humans, Immunity, Infant, Influenza A Virus, H2N2 Subtype (immunology), Influenza A Virus, H2N2 Subtype (isolation & purification), Influenza, Human (epidemiology), Influenza, Human (immunology), Influenza, Human (virology), Male, Middle Aged, New York (epidemiology), Pandemics, Risk Assessment, Seroepidemiologic Studies, Young Adult.
- MESH :
- geographic , epidemiology : Hong Kong, New York.
- epidemiology : Influenza, Human.
- immunology : Influenza A Virus, H2N2 Subtype, Influenza, Human.
- isolation & purification : Influenza A Virus, H2N2 Subtype.
- virology : Influenza, Human.
- Adolescent, Adult, Aged, Aged, 80 and over, Animals, Child, Child, Preschool, Demography, Female, Humans, Immunity, Infant, Male, Middle Aged, Pandemics, Risk Assessment, Seroepidemiologic Studies, Young Adult.
Abstract
Influenza A pandemics cause significant mortality and morbidity. H2N2 viruses have caused a prior pandemic, and are circulating in avian reservoirs. The age-related frequency of current population immunity to H2 viruses was evaluated.
Hemagglutinin inhibition (HAI) assays against historical human and recent avian influenza A(H2N2) viruses were performed across age groups in Rochester, New York, and Hong Kong, China. The impact of existing cross-reactive HAI immunity on the effective reproduction number was modeled.
One hundred fifty individual sera from Rochester and 295 from Hong Kong were included. Eighty-five percent of patients born in Rochester and Hong Kong before 1968 had HAI titers ≥1:40 against A/Singapore/1/57, and >50% had titers ≥1:40 against A/Berkeley/1/68. The frequency of titers ≥1:40 to avian H2N2 A/mallard/England/727/06 and A/mallard/Netherlands/14/07 in subjects born before 1957 was 62% and 24%, respectively. There were no H2 HAI titers >1:40 in individuals born after 1968. These levels of seroprevalence reduce the initial reproduction number of A/Singapore/1/1957 or A/Berkeley/1/68 by 15%–20%. A basic reproduction number (R0) of the emerging transmissible virus <1.2 predicts a preventable pandemic.
Population immunity to H2 viruses is insufficient to block epidemic spread of H2 virus. An H2N2 pandemic would have lower impact in those born before 1968.
Url:
DOI: 10.1093/infdis/jiy291
PubMed: 29762672
PubMed Central: 6107991
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PMC:6107991Le document en format XML
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Population Serologic Immunity to Human and Avian H2N2 Viruses in the United States and Hong Kong for Pandemic Risk Assessment</title>
<author><name sortKey="Babu, Tara M" sort="Babu, Tara M" uniqKey="Babu T" first="Tara M" last="Babu">Tara M. Babu</name>
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<author><name sortKey="Perera, Ranawaka A P M" sort="Perera, Ranawaka A P M" uniqKey="Perera R" first="Ranawaka A P M" last="Perera">Ranawaka A P M. Perera</name>
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<author><name sortKey="Wu, Joseph T" sort="Wu, Joseph T" uniqKey="Wu J" first="Joseph T" last="Wu">Joseph T. Wu</name>
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<author><name sortKey="Fitzgerald, Theresa" sort="Fitzgerald, Theresa" uniqKey="Fitzgerald T" first="Theresa" last="Fitzgerald">Theresa Fitzgerald</name>
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<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">État de New York</region>
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<wicri:cityArea>Department of Infectious Diseases, University of Rochester Medical Center</wicri:cityArea>
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</author>
<author><name sortKey="Nolan, Carolyn" sort="Nolan, Carolyn" uniqKey="Nolan C" first="Carolyn" last="Nolan">Carolyn Nolan</name>
<affiliation wicri:level="2"><nlm:aff id="AF0001">Department of Infectious Diseases, University of Rochester Medical Center, New York</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">État de New York</region>
</placeName>
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<author><name sortKey="Cowling, Benjamin J" sort="Cowling, Benjamin J" uniqKey="Cowling B" first="Benjamin J" last="Cowling">Benjamin J. Cowling</name>
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<wicri:noCountry code="subfield">The University of Hong Kong</wicri:noCountry>
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<author><name sortKey="Krauss, Scott" sort="Krauss, Scott" uniqKey="Krauss S" first="Scott" last="Krauss">Scott Krauss</name>
<affiliation wicri:level="2"><nlm:aff id="AF0003">Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Tennessee</region>
</placeName>
<wicri:cityArea>Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis</wicri:cityArea>
</affiliation>
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<author><name sortKey="Treanor, John J" sort="Treanor, John J" uniqKey="Treanor J" first="John J" last="Treanor">John J. Treanor</name>
<affiliation wicri:level="2"><nlm:aff id="AF0001">Department of Infectious Diseases, University of Rochester Medical Center, New York</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">État de New York</region>
</placeName>
<wicri:cityArea>Department of Infectious Diseases, University of Rochester Medical Center</wicri:cityArea>
</affiliation>
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<author><name sortKey="Peiris, Malik" sort="Peiris, Malik" uniqKey="Peiris M" first="Malik" last="Peiris">Malik Peiris</name>
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<wicri:noCountry code="subfield">The University of Hong Kong</wicri:noCountry>
</affiliation>
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<series><title level="j">The Journal of Infectious Diseases</title>
<idno type="ISSN">0022-1899</idno>
<idno type="eISSN">1537-6613</idno>
<imprint><date when="2018">2018</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Animals</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Demography</term>
<term>Female</term>
<term>Hong Kong (epidemiology)</term>
<term>Humans</term>
<term>Immunity</term>
<term>Infant</term>
<term>Influenza A Virus, H2N2 Subtype (immunology)</term>
<term>Influenza A Virus, H2N2 Subtype (isolation & purification)</term>
<term>Influenza, Human (epidemiology)</term>
<term>Influenza, Human (immunology)</term>
<term>Influenza, Human (virology)</term>
<term>Male</term>
<term>Middle Aged</term>
<term>New York (epidemiology)</term>
<term>Pandemics</term>
<term>Risk Assessment</term>
<term>Seroepidemiologic Studies</term>
<term>Young Adult</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Adolescent</term>
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Animaux</term>
<term>Démographie</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Femelle</term>
<term>Grippe humaine (immunologie)</term>
<term>Grippe humaine (virologie)</term>
<term>Grippe humaine (épidémiologie)</term>
<term>Hong Kong (épidémiologie)</term>
<term>Humains</term>
<term>Immunité</term>
<term>Jeune adulte</term>
<term>Mâle</term>
<term>Nourrisson</term>
<term>Pandémies</term>
<term>Sous-type H2N2 du virus de la grippe A (immunologie)</term>
<term>Sous-type H2N2 du virus de la grippe A (isolement et purification)</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>État de New York (épidémiologie)</term>
<term>Études séroépidémiologiques</term>
<term>Évaluation des risques</term>
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<keywords scheme="MESH" type="geographic" qualifier="epidemiology" xml:lang="en"><term>Hong Kong</term>
<term>New York</term>
</keywords>
<keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Influenza, Human</term>
</keywords>
<keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Grippe humaine</term>
<term>Sous-type H2N2 du virus de la grippe A</term>
</keywords>
<keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Influenza A Virus, H2N2 Subtype</term>
<term>Influenza, Human</term>
</keywords>
<keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Influenza A Virus, H2N2 Subtype</term>
</keywords>
<keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Sous-type H2N2 du virus de la grippe A</term>
</keywords>
<keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Grippe humaine</term>
</keywords>
<keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Influenza, Human</term>
</keywords>
<keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Grippe humaine</term>
<term>Hong Kong</term>
<term>État de New York</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Adolescent</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Animals</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Demography</term>
<term>Female</term>
<term>Humans</term>
<term>Immunity</term>
<term>Infant</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Pandemics</term>
<term>Risk Assessment</term>
<term>Seroepidemiologic Studies</term>
<term>Young Adult</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Adolescent</term>
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Animaux</term>
<term>Démographie</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Femelle</term>
<term>Humains</term>
<term>Immunité</term>
<term>Jeune adulte</term>
<term>Mâle</term>
<term>Nourrisson</term>
<term>Pandémies</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Études séroépidémiologiques</term>
<term>Évaluation des risques</term>
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<front><div type="abstract" xml:lang="en"><title>Abstract</title>
<sec id="s1"><title>Background</title>
<p>Influenza A pandemics cause significant mortality and morbidity. H2N2 viruses have caused a prior pandemic, and are circulating in avian reservoirs. The age-related frequency of current population immunity to H2 viruses was evaluated.</p>
</sec>
<sec id="s2"><title>Methods</title>
<p>Hemagglutinin inhibition (HAI) assays against historical human and recent avian influenza A(H2N2) viruses were performed across age groups in Rochester, New York, and Hong Kong, China. The impact of existing cross-reactive HAI immunity on the effective reproduction number was modeled.</p>
</sec>
<sec id="s3"><title>Results</title>
<p>One hundred fifty individual sera from Rochester and 295 from Hong Kong were included. Eighty-five percent of patients born in Rochester and Hong Kong before 1968 had HAI titers ≥1:40 against A/Singapore/1/57, and >50% had titers ≥1:40 against A/Berkeley/1/68. The frequency of titers ≥1:40 to avian H2N2 A/mallard/England/727/06 and A/mallard/Netherlands/14/07 in subjects born before 1957 was 62% and 24%, respectively. There were no H2 HAI titers >1:40 in individuals born after 1968. These levels of seroprevalence reduce the initial reproduction number of A/Singapore/1/1957 or A/Berkeley/1/68 by 15%–20%. A basic reproduction number (R<sub>0</sub>
) of the emerging transmissible virus <1.2 predicts a preventable pandemic.</p>
</sec>
<sec id="s4"><title>Conclusions</title>
<p>Population immunity to H2 viruses is insufficient to block epidemic spread of H2 virus. An H2N2 pandemic would have lower impact in those born before 1968.</p>
</sec>
</div>
</front>
</TEI>
</record>
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