Influenza vaccination in the Americas: Progress and challenges after the 2009 A(H1N1) influenza pandemic
Identifieur interne : 000298 ( Pmc/Checkpoint ); précédent : 000297; suivant : 000299Influenza vaccination in the Americas: Progress and challenges after the 2009 A(H1N1) influenza pandemic
Auteurs : Alba María Ropero-Álvarez ; Nathalie El Omeiri ; Hannah Jane Kurtis ; M. Carolina Danovaro-Holliday ; Cuauhtémoc Ruiz-MatusSource :
- Human Vaccines & Immunotherapeutics [ 2164-5515 ] ; 2016.
Abstract
Url:
DOI: 10.1080/21645515.2016.1157240
PubMed: 27196006
PubMed Central: 4994725
Affiliations:
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PMC:4994725Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Influenza vaccination in the Americas: Progress and challenges after the 2009 A(H1N1) influenza pandemic</title>
<author><name sortKey="Ropero Lvarez, Alba Maria" sort="Ropero Lvarez, Alba Maria" uniqKey="Ropero Lvarez A" first="Alba María" last="Ropero-Álvarez">Alba María Ropero-Álvarez</name>
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<author><name sortKey="El Omeiri, Nathalie" sort="El Omeiri, Nathalie" uniqKey="El Omeiri N" first="Nathalie" last="El Omeiri">Nathalie El Omeiri</name>
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<author><name sortKey="Danovaro Holliday, M Carolina" sort="Danovaro Holliday, M Carolina" uniqKey="Danovaro Holliday M" first="M. Carolina" last="Danovaro-Holliday">M. Carolina Danovaro-Holliday</name>
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<author><name sortKey="Ruiz Matus, Cuauhtemoc" sort="Ruiz Matus, Cuauhtemoc" uniqKey="Ruiz Matus C" first="Cuauhtémoc" last="Ruiz-Matus">Cuauhtémoc Ruiz-Matus</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Influenza vaccination in the Americas: Progress and challenges after the 2009 A(H1N1) influenza pandemic</title>
<author><name sortKey="Ropero Lvarez, Alba Maria" sort="Ropero Lvarez, Alba Maria" uniqKey="Ropero Lvarez A" first="Alba María" last="Ropero-Álvarez">Alba María Ropero-Álvarez</name>
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<author><name sortKey="El Omeiri, Nathalie" sort="El Omeiri, Nathalie" uniqKey="El Omeiri N" first="Nathalie" last="El Omeiri">Nathalie El Omeiri</name>
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<author><name sortKey="Kurtis, Hannah Jane" sort="Kurtis, Hannah Jane" uniqKey="Kurtis H" first="Hannah Jane" last="Kurtis">Hannah Jane Kurtis</name>
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<author><name sortKey="Danovaro Holliday, M Carolina" sort="Danovaro Holliday, M Carolina" uniqKey="Danovaro Holliday M" first="M. Carolina" last="Danovaro-Holliday">M. Carolina Danovaro-Holliday</name>
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<author><name sortKey="Ruiz Matus, Cuauhtemoc" sort="Ruiz Matus, Cuauhtemoc" uniqKey="Ruiz Matus C" first="Cuauhtémoc" last="Ruiz-Matus">Cuauhtémoc Ruiz-Matus</name>
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<series><title level="j">Human Vaccines & Immunotherapeutics</title>
<idno type="ISSN">2164-5515</idno>
<idno type="eISSN">2164-554X</idno>
<imprint><date when="2016">2016</date>
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<front><div type="abstract" xml:lang="en"><title>ABSTRACT</title>
<p><bold>Background</bold>
: There has been considerable uptake of seasonal influenza vaccines in the Americas compared to other regions. We describe the current influenza vaccination target groups, recent progress in vaccine uptake and in generating evidence on influenza seasonality and vaccine effectiveness for immunization programs. We also discuss persistent challenges, 5 years after the A(H1N1) 2009 influenza pandemic.</p>
<p><bold>Methods</bold>
: We compiled and summarized data annually reported by countries to the Pan American Health Organization/World Health Organization (PAHO/WHO) through the WHO/UNICEF joint report form on immunization, information obtained through PAHO's Revolving Fund for Vaccine Procurement and communications with managers of national Expanded Programs on Immunization (EPI).</p>
<p><bold>Results</bold>
: Since 2008, 25 countries/territories in the Americas have introduced new target groups for vaccination or expanded the age ranges of existing target groups. As of 2014, 40 (89%) out of 45 countries/territories have policies established for seasonal influenza vaccination. Currently, 29 (64%) countries/territories target pregnant women for vaccination, the highest priority group according to WHO´s Stategic Advisory Group of Experts and PAHO/WHO's Technical Advisory Group on Vaccine-preventable Diseases, compared to only 7 (16%) in 2008. Among 23 countries reporting coverage data, on average, 75% of adults ≥60 years, 45% of children aged 6–23 months, 32% of children aged 5–2 years, 59% of pregnant women, 78% of healthcare workers, and 90% of individuals with chronic conditions were vaccinated during the 2013–14 Northern Hemisphere or 2014 Southern Hemisphere influenza vaccination activities. Difficulties however persist in the estimation of vaccination coverage, especially for pregnant women and persons with chronic conditions. Since 2007, 6 tropical countries have changed their vaccine formulation from the Northern to the Southern Hemisphere formulation and the timing of their campaigns to April-May following the review of national evidence. LAC countries have also established an official network dedicated to evaluating influenza vaccines effectiveness and impact.</p>
<p><bold>Conclusion</bold>
: Following the A(H1N1)2009 influenza pandemic, countries of the Americas have continued their efforts to sustain or increase seasonal influenza vaccine uptake among high risk groups, especially among pregnant women. Countries also continued strengthening influenza surveillance, immunization platforms and information systems, indirectly improving preparedness for future pandemics. Influenza vaccination is particularly challenging compared to other vaccines included in EPI schedules, due to the need for annual, optimally timed vaccination, the wide spectrum of target groups, and the limitations of the available vaccines. Countries should continue to monitor influenza vaccination coverage, generate evidence for vaccination programs and implement social communication strategies addressing existing gaps.</p>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Hum Vaccin Immunother</journal-id>
<journal-id journal-id-type="iso-abbrev">Hum Vaccin Immunother</journal-id>
<journal-id journal-id-type="publisher-id">KHVI</journal-id>
<journal-id journal-id-type="publisher-id">khvi20</journal-id>
<journal-title-group><journal-title>Human Vaccines & Immunotherapeutics</journal-title>
</journal-title-group>
<issn pub-type="ppub">2164-5515</issn>
<issn pub-type="epub">2164-554X</issn>
<publisher><publisher-name>Taylor & Francis</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">27196006</article-id>
<article-id pub-id-type="pmc">4994725</article-id>
<article-id pub-id-type="publisher-id">1157240</article-id>
<article-id pub-id-type="doi">10.1080/21645515.2016.1157240</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research Paper</subject>
</subj-group>
</article-categories>
<title-group><article-title>Influenza vaccination in the Americas: Progress and challenges after the 2009 A(H1N1) influenza pandemic</article-title>
<alt-title alt-title-type="running-authors">A. M. Ropero-Álvarez ET AL.</alt-title>
<alt-title alt-title-type="running-title">Human Vaccines & Immunotherapeutics</alt-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Ropero-Álvarez</surname>
<given-names>Alba María</given-names>
</name>
<xref ref-type="aff" rid="af0001"></xref>
<xref ref-type="author-notes" rid="afn0001"><sup>†</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>El Omeiri</surname>
<given-names>Nathalie</given-names>
</name>
<xref ref-type="aff" rid="af0001"></xref>
<xref ref-type="author-notes" rid="afn0001"><sup>†</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kurtis</surname>
<given-names>Hannah Jane</given-names>
</name>
<xref ref-type="aff" rid="af0001"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Danovaro-Holliday</surname>
<given-names>M. Carolina</given-names>
</name>
<xref ref-type="aff" rid="af0001"></xref>
</contrib>
<contrib contrib-type="author"><name><surname>Ruiz-Matus</surname>
<given-names>Cuauhtémoc</given-names>
</name>
<xref ref-type="aff" rid="af0001"></xref>
</contrib>
<aff id="af0001"><institution>Pan American Health Organization, Comprehensive Family Immunization Unit, Family, Gender and Life Course Department</institution>
, Washington, DC,<country>USA</country>
</aff>
</contrib-group>
<author-notes><corresp id="an0001"><bold>CONTACT</bold>
Alba María Ropero-Álvarez <email xlink:href="roperoal@paho.org">roperoal@paho.org</email>
<institution>Pan American Health Organization, Comprehensive Family Immunization Unit, Family, Gender and Life Course Department</institution>
, <addr-line>525 Twenty-third St</addr-line>
. NW Washington, DC 20037-2895, <country>USA</country>
</corresp>
<fn><p>Color versions of one or more of the figures in the article can be found online at <uri xlink:href="http://www.tandfonline.com/khvi">www.tandfonline.com/khvi</uri>
.</p>
</fn>
<fn id="afn0001"><label>†</label>
<p>Equal contributors.</p>
</fn>
<fn><p>Supplemental materials can be accessed on the <uri xlink:href="http://www.tandfonline.com/khvi">publisher's website</uri>
.</p>
</fn>
<fn><p>This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.</p>
</fn>
</author-notes>
<pub-date pub-type="collection"><month>8</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub"><day>19</day>
<month>5</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>19</day>
<month>5</month>
<year>2016</year>
</pub-date>
<pmc-comment> PMC Release delay is 0 months and 0 days and was based on the . </pmc-comment>
<volume>12</volume>
<issue>8</issue>
<fpage seq="38">2206</fpage>
<lpage>2214</lpage>
<history><date date-type="received"><day>2</day>
<month>12</month>
<year>2015</year>
</date>
<date date-type="rev-recd"><day>27</day>
<month>1</month>
<year>2016</year>
</date>
<date date-type="accepted"><day>16</day>
<month>2</month>
<year>2016</year>
</date>
</history>
<permissions><pmc-comment> © Pan American Health Organization/World Health Organization </pmc-comment>
<copyright-statement>© 2016 Published with license by Taylor & Francis</copyright-statement>
<copyright-year>2016</copyright-year>
<copyright-holder>Taylor & Francis</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License <ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/3.0/">http://creativecommons.org/licenses/by/3.0/</ext-link>
, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.</license-p>
</license>
</permissions>
<self-uri content-type="pdf" xlink:href="khvi-12-08-1157240.pdf"></self-uri>
<abstract><title>ABSTRACT</title>
<p><bold>Background</bold>
: There has been considerable uptake of seasonal influenza vaccines in the Americas compared to other regions. We describe the current influenza vaccination target groups, recent progress in vaccine uptake and in generating evidence on influenza seasonality and vaccine effectiveness for immunization programs. We also discuss persistent challenges, 5 years after the A(H1N1) 2009 influenza pandemic.</p>
<p><bold>Methods</bold>
: We compiled and summarized data annually reported by countries to the Pan American Health Organization/World Health Organization (PAHO/WHO) through the WHO/UNICEF joint report form on immunization, information obtained through PAHO's Revolving Fund for Vaccine Procurement and communications with managers of national Expanded Programs on Immunization (EPI).</p>
<p><bold>Results</bold>
: Since 2008, 25 countries/territories in the Americas have introduced new target groups for vaccination or expanded the age ranges of existing target groups. As of 2014, 40 (89%) out of 45 countries/territories have policies established for seasonal influenza vaccination. Currently, 29 (64%) countries/territories target pregnant women for vaccination, the highest priority group according to WHO´s Stategic Advisory Group of Experts and PAHO/WHO's Technical Advisory Group on Vaccine-preventable Diseases, compared to only 7 (16%) in 2008. Among 23 countries reporting coverage data, on average, 75% of adults ≥60 years, 45% of children aged 6–23 months, 32% of children aged 5–2 years, 59% of pregnant women, 78% of healthcare workers, and 90% of individuals with chronic conditions were vaccinated during the 2013–14 Northern Hemisphere or 2014 Southern Hemisphere influenza vaccination activities. Difficulties however persist in the estimation of vaccination coverage, especially for pregnant women and persons with chronic conditions. Since 2007, 6 tropical countries have changed their vaccine formulation from the Northern to the Southern Hemisphere formulation and the timing of their campaigns to April-May following the review of national evidence. LAC countries have also established an official network dedicated to evaluating influenza vaccines effectiveness and impact.</p>
<p><bold>Conclusion</bold>
: Following the A(H1N1)2009 influenza pandemic, countries of the Americas have continued their efforts to sustain or increase seasonal influenza vaccine uptake among high risk groups, especially among pregnant women. Countries also continued strengthening influenza surveillance, immunization platforms and information systems, indirectly improving preparedness for future pandemics. Influenza vaccination is particularly challenging compared to other vaccines included in EPI schedules, due to the need for annual, optimally timed vaccination, the wide spectrum of target groups, and the limitations of the available vaccines. Countries should continue to monitor influenza vaccination coverage, generate evidence for vaccination programs and implement social communication strategies addressing existing gaps.</p>
</abstract>
<kwd-group kwd-group-type="author"><title>KEYWORDS</title>
<kwd>Americas</kwd>
<kwd>influenza vaccines</kwd>
<kwd>immunization</kwd>
<kwd>Latin America and the Caribbean</kwd>
<kwd>seasonal influenza</kwd>
</kwd-group>
<counts><fig-count count="3"></fig-count>
<table-count count="2"></table-count>
<ref-count count="25"></ref-count>
<page-count count="9"></page-count>
</counts>
</article-meta>
</front>
</pmc>
<affiliations><list></list>
<tree><noCountry><name sortKey="Danovaro Holliday, M Carolina" sort="Danovaro Holliday, M Carolina" uniqKey="Danovaro Holliday M" first="M. Carolina" last="Danovaro-Holliday">M. Carolina Danovaro-Holliday</name>
<name sortKey="El Omeiri, Nathalie" sort="El Omeiri, Nathalie" uniqKey="El Omeiri N" first="Nathalie" last="El Omeiri">Nathalie El Omeiri</name>
<name sortKey="Kurtis, Hannah Jane" sort="Kurtis, Hannah Jane" uniqKey="Kurtis H" first="Hannah Jane" last="Kurtis">Hannah Jane Kurtis</name>
<name sortKey="Ropero Lvarez, Alba Maria" sort="Ropero Lvarez, Alba Maria" uniqKey="Ropero Lvarez A" first="Alba María" last="Ropero-Álvarez">Alba María Ropero-Álvarez</name>
<name sortKey="Ruiz Matus, Cuauhtemoc" sort="Ruiz Matus, Cuauhtemoc" uniqKey="Ruiz Matus C" first="Cuauhtémoc" last="Ruiz-Matus">Cuauhtémoc Ruiz-Matus</name>
</noCountry>
</tree>
</affiliations>
</record>
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