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Immuno-epidemiologic Correlates of Pandemic H1N1 Surveillance Observations: Higher Antibody and Lower Cell-Mediated Immune Responses with Advanced Age

Identifieur interne : 000062 ( 1968/Analysis ); précédent : 000061; suivant : 000063

Immuno-epidemiologic Correlates of Pandemic H1N1 Surveillance Observations: Higher Antibody and Lower Cell-Mediated Immune Responses with Advanced Age

Auteurs : Danuta M. Skowronski [Canada] ; Travis S. Hottes [Canada] ; Janet E. Mcelhaney [Canada] ; Naveed Z. Janjua [Canada] ; Suzana Sabaiduc [Canada] ; Tracy Chan [Canada] ; Beth Gentleman [Canada] ; Dale Purych [Canada] ; Jennifer Gardy [Canada] ; David M. Patrick [Canada] ; Robert C. Brunham [Canada] ; Gaston De Serres [Canada] ; Martin Petric [Canada]

Source :

RBID : Pascal:11-0131918

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English descriptors

Abstract

Background. Pandemic H1N1 (pH1N1) surveillance data showed lower attack rates but higher risk of severe outcomes with advanced age. We explored immuno-epidemiologic correlates of surveillance findings including humoral and cell-mediated immunity (CMI). Methods. In an age-based design, ∼100 banked/residual sera per 10-year age stratum were assessed by hemagglutination inhibition (HI) and microneutralization (MN) assays for preexisting antibody to pH1N1 and recent seasonal H1N1 and H3N2 strains. In a separate birth cohort design defined by childhood influenza A/subtype priming (1919-1929: H1N1; 1945-1949: H1N1; 1958-1960: H2N2; 1969-1970: H3N2; 1978-1989: H3N2/H1N1), whole blood was collected from up to 50 volunteers per birth cohort. The ratio of Th1(IFN-γ):Th2(IL-10) cytokine responses was evaluated in vitro. Results. Antibody to seasonal viruses was highest in school-age children. Cross-reactive HI/MN antibody to pH1N1 was low among participants <70 years of age (yoa; 6%/4% ≥ 40), but seroprevalence increased at 70-79 yoa (27%/6%), increased even more at 80-89 yoa (65%/47%), and was highest at ≥90 yoa (88%/76%). CMI to pH1N1 was evident in all 5 birth cohorts but was lower compared with seasonal strains. There was little differentiation by subtype priming, but the Th1:Th2 ratio for all viruses dropped significantly in the 2 oldest cohorts. Conclusions. Preexisting antibody may have protected the very old from pH1N1 infection, while diminished CMI may have contributed to greater severity once infected. In the young, cross-reactive pH1N1 antibody was mostly absent, while more intact CMI may have protected against severe outcomes.

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Pascal:11-0131918

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<country>Canada</country>
<wicri:noRegion>BC Biomedical Laboratories Ltd</wicri:noRegion>
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<name sortKey="Gardy, Jennifer" sort="Gardy, Jennifer" uniqKey="Gardy J" first="Jennifer" last="Gardy">Jennifer Gardy</name>
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<wicri:noRegion>British Columbia Centre for Disease Control, University of British Columbia</wicri:noRegion>
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<s3>CAN</s3>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Department of Microbiology and Immunology, University of British Columbia</wicri:noRegion>
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<name sortKey="Patrick, David M" sort="Patrick, David M" uniqKey="Patrick D" first="David M." last="Patrick">David M. Patrick</name>
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<wicri:noRegion>British Columbia Centre for Disease Control, University of British Columbia</wicri:noRegion>
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<sZ>1 aut.</sZ>
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<sZ>10 aut.</sZ>
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<country>Canada</country>
<wicri:noRegion>School of Population and Public Health, University of British Columbia</wicri:noRegion>
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<name sortKey="Brunham, Robert C" sort="Brunham, Robert C" uniqKey="Brunham R" first="Robert C." last="Brunham">Robert C. Brunham</name>
<affiliation wicri:level="1">
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<s1>British Columbia Centre for Disease Control, University of British Columbia</s1>
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<wicri:noRegion>British Columbia Centre for Disease Control, University of British Columbia</wicri:noRegion>
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<s1>Department of Medicine, University of British Columbia</s1>
<s3>CAN</s3>
<sZ>3 aut.</sZ>
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</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Department of Medicine, University of British Columbia</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="De Serres, Gaston" sort="De Serres, Gaston" uniqKey="De Serres G" first="Gaston" last="De Serres">Gaston De Serres</name>
<affiliation wicri:level="1">
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<s1>Institut national de santé publique du Québec, Université Laval</s1>
<s2>Québec</s2>
<s3>CAN</s3>
<sZ>12 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Québec</wicri:noRegion>
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<s3>CAN</s3>
<sZ>12 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Québec</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Petric, Martin" sort="Petric, Martin" uniqKey="Petric M" first="Martin" last="Petric">Martin Petric</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>British Columbia Centre for Disease Control, University of British Columbia</s1>
<s3>CAN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>9 aut.</sZ>
<sZ>10 aut.</sZ>
<sZ>11 aut.</sZ>
<sZ>13 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>British Columbia Centre for Disease Control, University of British Columbia</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="05">
<s1>Department of Pathology and Laboratory Medicine, University of British Columbia</s1>
<s3>CAN</s3>
<sZ>13 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Department of Pathology and Laboratory Medicine, University of British Columbia</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series>
<title level="j" type="main">The Journal of infectious diseases</title>
<title level="j" type="abbreviated">J. infect. dis.</title>
<idno type="ISSN">0022-1899</idno>
<imprint>
<date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<title level="j" type="main">The Journal of infectious diseases</title>
<title level="j" type="abbreviated">J. infect. dis.</title>
<idno type="ISSN">0022-1899</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Adolescent</term>
<term>Adult</term>
<term>Age</term>
<term>Age Factors</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Antibodies, Viral (blood)</term>
<term>Antibody</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Female</term>
<term>Hemagglutination Inhibition Tests</term>
<term>Humans</term>
<term>Immune response</term>
<term>Infant</term>
<term>Infant, Newborn</term>
<term>Infection</term>
<term>Influenza A Virus, H1N1 Subtype (immunology)</term>
<term>Influenza A Virus, H2N2 Subtype (immunology)</term>
<term>Influenza A Virus, H3N2 Subtype (immunology)</term>
<term>Influenza, Human (epidemiology)</term>
<term>Influenza, Human (immunology)</term>
<term>Influenza, Human (virology)</term>
<term>Influenzavirus A(H1N1)</term>
<term>Lymphocytes (immunology)</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Neutralization Tests</term>
<term>Pandemics</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>Anticorps antiviraux (sang)</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Facteurs de l'âge</term>
<term>Femelle</term>
<term>Grippe humaine (immunologie)</term>
<term>Grippe humaine (virologie)</term>
<term>Grippe humaine (épidémiologie)</term>
<term>Humains</term>
<term>Jeune adulte</term>
<term>Lymphocytes (immunologie)</term>
<term>Mâle</term>
<term>Nourrisson</term>
<term>Nouveau-né</term>
<term>Pandémies</term>
<term>Sous-type H1N1 du virus de la grippe A (immunologie)</term>
<term>Sous-type H2N2 du virus de la grippe A (immunologie)</term>
<term>Sous-type H3N2 du virus de la grippe A (immunologie)</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tests d'inhibition de l'hémagglutination</term>
<term>Tests de neutralisation</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en">
<term>Antibodies, Viral</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>Lymphocytes</term>
<term>Sous-type H1N1 du virus de la grippe A</term>
<term>Sous-type H2N2 du virus de la grippe A</term>
<term>Sous-type H3N2 du virus de la grippe A</term>
</keywords>
<keywords scheme="MESH" qualifier="immunology" xml:lang="en">
<term>Influenza A Virus, H1N1 Subtype</term>
<term>Influenza A Virus, H2N2 Subtype</term>
<term>Influenza A Virus, H3N2 Subtype</term>
<term>Influenza, Human</term>
<term>Lymphocytes</term>
</keywords>
<keywords scheme="MESH" qualifier="sang" xml:lang="fr">
<term>Anticorps antiviraux</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>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Adolescent</term>
<term>Adult</term>
<term>Age Factors</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Child</term>
<term>Child, Preschool</term>
<term>Female</term>
<term>Hemagglutination Inhibition Tests</term>
<term>Humans</term>
<term>Infant</term>
<term>Infant, Newborn</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Neutralization Tests</term>
<term>Pandemics</term>
<term>Young Adult</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Adolescent</term>
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Anticorps</term>
<term>Enfant</term>
<term>Enfant d'âge préscolaire</term>
<term>Facteurs de l'âge</term>
<term>Femelle</term>
<term>Humains</term>
<term>Jeune adulte</term>
<term>Mâle</term>
<term>Nourrisson</term>
<term>Nouveau-né</term>
<term>Pandémies</term>
<term>Réponse immune</term>
<term>Age</term>
<term>Infection</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tests d'inhibition de l'hémagglutination</term>
<term>Tests de neutralisation</term>
<term>Virus grippal A(H1N1)</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Background. Pandemic H1N1 (pH1N1) surveillance data showed lower attack rates but higher risk of severe outcomes with advanced age. We explored immuno-epidemiologic correlates of surveillance findings including humoral and cell-mediated immunity (CMI). Methods. In an age-based design, ∼100 banked/residual sera per 10-year age stratum were assessed by hemagglutination inhibition (HI) and microneutralization (MN) assays for preexisting antibody to pH1N1 and recent seasonal H1N1 and H3N2 strains. In a separate birth cohort design defined by childhood influenza A/subtype priming (1919-1929: H1N1; 1945-1949: H1N1; 1958-1960: H2N2; 1969-1970: H3N2; 1978-1989: H3N2/H1N1), whole blood was collected from up to 50 volunteers per birth cohort. The ratio of Th1(IFN-γ):Th2(IL-10) cytokine responses was evaluated in vitro. Results. Antibody to seasonal viruses was highest in school-age children. Cross-reactive HI/MN antibody to pH1N1 was low among participants <70 years of age (yoa; 6%/4% ≥ 40), but seroprevalence increased at 70-79 yoa (27%/6%), increased even more at 80-89 yoa (65%/47%), and was highest at ≥90 yoa (88%/76%). CMI to pH1N1 was evident in all 5 birth cohorts but was lower compared with seasonal strains. There was little differentiation by subtype priming, but the Th1:Th2 ratio for all viruses dropped significantly in the 2 oldest cohorts. Conclusions. Preexisting antibody may have protected the very old from pH1N1 infection, while diminished CMI may have contributed to greater severity once infected. In the young, cross-reactive pH1N1 antibody was mostly absent, while more intact CMI may have protected against severe outcomes.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Canada</li>
</country>
</list>
<tree>
<country name="Canada">
<noRegion>
<name sortKey="Skowronski, Danuta M" sort="Skowronski, Danuta M" uniqKey="Skowronski D" first="Danuta M." last="Skowronski">Danuta M. Skowronski</name>
</noRegion>
<name sortKey="Brunham, Robert C" sort="Brunham, Robert C" uniqKey="Brunham R" first="Robert C." last="Brunham">Robert C. Brunham</name>
<name sortKey="Brunham, Robert C" sort="Brunham, Robert C" uniqKey="Brunham R" first="Robert C." last="Brunham">Robert C. Brunham</name>
<name sortKey="Chan, Tracy" sort="Chan, Tracy" uniqKey="Chan T" first="Tracy" last="Chan">Tracy Chan</name>
<name sortKey="De Serres, Gaston" sort="De Serres, Gaston" uniqKey="De Serres G" first="Gaston" last="De Serres">Gaston De Serres</name>
<name sortKey="De Serres, Gaston" sort="De Serres, Gaston" uniqKey="De Serres G" first="Gaston" last="De Serres">Gaston De Serres</name>
<name sortKey="Gardy, Jennifer" sort="Gardy, Jennifer" uniqKey="Gardy J" first="Jennifer" last="Gardy">Jennifer Gardy</name>
<name sortKey="Gardy, Jennifer" sort="Gardy, Jennifer" uniqKey="Gardy J" first="Jennifer" last="Gardy">Jennifer Gardy</name>
<name sortKey="Gentleman, Beth" sort="Gentleman, Beth" uniqKey="Gentleman B" first="Beth" last="Gentleman">Beth Gentleman</name>
<name sortKey="Gentleman, Beth" sort="Gentleman, Beth" uniqKey="Gentleman B" first="Beth" last="Gentleman">Beth Gentleman</name>
<name sortKey="Hottes, Travis S" sort="Hottes, Travis S" uniqKey="Hottes T" first="Travis S." last="Hottes">Travis S. Hottes</name>
<name sortKey="Janjua, Naveed Z" sort="Janjua, Naveed Z" uniqKey="Janjua N" first="Naveed Z." last="Janjua">Naveed Z. Janjua</name>
<name sortKey="Janjua, Naveed Z" sort="Janjua, Naveed Z" uniqKey="Janjua N" first="Naveed Z." last="Janjua">Naveed Z. Janjua</name>
<name sortKey="Mcelhaney, Janet E" sort="Mcelhaney, Janet E" uniqKey="Mcelhaney J" first="Janet E." last="Mcelhaney">Janet E. Mcelhaney</name>
<name sortKey="Mcelhaney, Janet E" sort="Mcelhaney, Janet E" uniqKey="Mcelhaney J" first="Janet E." last="Mcelhaney">Janet E. Mcelhaney</name>
<name sortKey="Patrick, David M" sort="Patrick, David M" uniqKey="Patrick D" first="David M." last="Patrick">David M. Patrick</name>
<name sortKey="Patrick, David M" sort="Patrick, David M" uniqKey="Patrick D" first="David M." last="Patrick">David M. Patrick</name>
<name sortKey="Petric, Martin" sort="Petric, Martin" uniqKey="Petric M" first="Martin" last="Petric">Martin Petric</name>
<name sortKey="Petric, Martin" sort="Petric, Martin" uniqKey="Petric M" first="Martin" last="Petric">Martin Petric</name>
<name sortKey="Purych, Dale" sort="Purych, Dale" uniqKey="Purych D" first="Dale" last="Purych">Dale Purych</name>
<name sortKey="Sabaiduc, Suzana" sort="Sabaiduc, Suzana" uniqKey="Sabaiduc S" first="Suzana" last="Sabaiduc">Suzana Sabaiduc</name>
<name sortKey="Skowronski, Danuta M" sort="Skowronski, Danuta M" uniqKey="Skowronski D" first="Danuta M." last="Skowronski">Danuta M. Skowronski</name>
</country>
</tree>
</affiliations>
</record>

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