[Differences between summer and fall waves of influenza in the pandemic of influenza (H1N1) 2009 in Navarre, Spain].
Identifieur interne : 000353 ( Main/Exploration ); précédent : 000352; suivant : 000354[Differences between summer and fall waves of influenza in the pandemic of influenza (H1N1) 2009 in Navarre, Spain].
Auteurs : Jesús Castilla [Espagne] ; Marcela Guevara ; Manuel García Cenoz ; Gabriel Reina ; Víctor Martínez Artola ; M Jesús Zamora ; Fátima Irisarri ; Mirian Fernández Alonso ; Esther SalcedoSource :
- Revista espanola de salud publica [ 2173-9110 ]
Descripteurs français
- KwdFr :
- Adolescent (MeSH), Adulte (MeSH), Adulte d'âge moyen (MeSH), Enfant (MeSH), Enfant d'âge préscolaire (MeSH), Espagne (épidémiologie), Femelle (MeSH), Grippe humaine (épidémiologie), Humains (MeSH), Jeune adulte (MeSH), Mâle (MeSH), Nourrisson (MeSH), Pandémies (MeSH), Saisons (MeSH), Sous-type H1N1 du virus de la grippe A (MeSH), Sujet âgé (MeSH).
- MESH :
- épidémiologie : Espagne, Grippe humaine.
- Adolescent, Adulte, Adulte d'âge moyen, Enfant, Enfant d'âge préscolaire, Femelle, Humains, Jeune adulte, Mâle, Nourrisson, Pandémies, Saisons, Sous-type H1N1 du virus de la grippe A, Sujet âgé.
- Wicri :
- geographic : Espagne.
English descriptors
- KwdEn :
- Adolescent (MeSH), Adult (MeSH), Aged (MeSH), Child (MeSH), Child, Preschool (MeSH), Female (MeSH), Humans (MeSH), Infant (MeSH), Influenza A Virus, H1N1 Subtype (MeSH), Influenza, Human (epidemiology), Male (MeSH), Middle Aged (MeSH), Pandemics (MeSH), Seasons (MeSH), Spain (epidemiology), Young Adult (MeSH).
- MESH :
- geographic , epidemiology : Spain.
- epidemiology : Influenza, Human.
- Adolescent, Adult, Aged, Child, Child, Preschool, Female, Humans, Infant, Influenza A Virus, H1N1 Subtype, Male, Middle Aged, Pandemics, Seasons, Young Adult.
Abstract
BACKGROUND
Two waves of influenza (H1N1) 2009 were produced in Navarre in 2009, one in the summer and the other in the fall. We aim to compare the characteristics of the two epidemic waves.
METHODS
We analysed individual influenza reports, virological confirmations in the primary care sentinel network, and hospitalised cases with confirmed influenza in Navarre. We compared the summer period (week 21 to 39 in 2009) with the fall-winter period (week 40 in 2009 to 20 in 2010).
RESULTS
Two waves of influenza A(H1N1)2009 occurred during 2009, with peaks in July and November. In the summer (week 21 to 39) 4389 cases of influenza syndrome were reported, with young adults the most affected group (58% aged 15-44 years). The highest incidence was registered after the San Fermin fiesta (92 cases per 100,000 population in week 29), with immediate return to baseline levels. A second wave occurred in the fall, with rates up to 7 times higher (667 cases per 100,000 in week 45); they remained above the epidemic threshold for 9 weeks, with children aged 5-14 years (111 per 1000) the most affected group. In the peak of both waves the percentage of smears confirmed for influenza reached 60%. During the summer there were 66 admissions with confirmed influenza (H1N1) 2009, and 158 than in the fall. The proportion of cases requiring admission to hospital was higher in the summer (1.5%) than in fall (0.8%: p<0,0001).
CONCLUSION
Influenza circulation was much lower in the summer. Serious cases occurred in periods of both high and low incidence of influenza syndromes.
DOI: 10.1590/S1135-57272011000100006
PubMed: 21750842
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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sortKey="Martinez Artola, Victor" sort="Martinez Artola, Victor" uniqKey="Martinez Artola V" first="Víctor" last="Martínez Artola">Víctor Martínez Artola</name></author><author><name sortKey="Zamora, M Jesus" sort="Zamora, M Jesus" uniqKey="Zamora M" first="M Jesús" last="Zamora">M Jesús Zamora</name></author><author><name sortKey="Irisarri, Fatima" sort="Irisarri, Fatima" uniqKey="Irisarri F" first="Fátima" last="Irisarri">Fátima Irisarri</name></author><author><name sortKey="Fernandez Alonso, Mirian" sort="Fernandez Alonso, Mirian" uniqKey="Fernandez Alonso M" first="Mirian" last="Fernández Alonso">Mirian Fernández Alonso</name></author><author><name sortKey="Salcedo, Esther" sort="Salcedo, Esther" uniqKey="Salcedo E" first="Esther" last="Salcedo">Esther Salcedo</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011 Jan-Feb</date><idno type="RBID">pubmed:21750842</idno><idno type="pmid">21750842</idno><idno type="doi">10.1590/S1135-57272011000100006</idno><idno type="wicri:Area/Main/Corpus">00360</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">00360</idno><idno type="wicri:Area/Main/Curation">000360</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000360</idno><idno type="wicri:Area/Main/Exploration">000360</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">[Differences between summer and fall waves of influenza in the pandemic of influenza (H1N1) 2009 in Navarre, Spain].</title><author><name sortKey="Castilla, Jesus" sort="Castilla, Jesus" uniqKey="Castilla J" first="Jesús" last="Castilla">Jesús Castilla</name><affiliation wicri:level="1"><nlm:affiliation>Instituto de Salud Pública de Navarra, Leyre 15, Pamplona. jcastilc@navarra.es</nlm:affiliation><country wicri:rule="url">Espagne</country></affiliation></author><author><name sortKey="Guevara, Marcela" sort="Guevara, Marcela" uniqKey="Guevara M" first="Marcela" last="Guevara">Marcela Guevara</name></author><author><name sortKey="Garcia Cenoz, Manuel" sort="Garcia Cenoz, Manuel" uniqKey="Garcia Cenoz M" first="Manuel" last="García Cenoz">Manuel García Cenoz</name></author><author><name sortKey="Reina, Gabriel" sort="Reina, Gabriel" uniqKey="Reina G" first="Gabriel" last="Reina">Gabriel Reina</name></author><author><name sortKey="Martinez Artola, Victor" sort="Martinez Artola, Victor" uniqKey="Martinez Artola V" first="Víctor" last="Martínez Artola">Víctor Martínez Artola</name></author><author><name sortKey="Zamora, M Jesus" sort="Zamora, M Jesus" uniqKey="Zamora M" first="M Jesús" last="Zamora">M Jesús Zamora</name></author><author><name sortKey="Irisarri, Fatima" sort="Irisarri, Fatima" uniqKey="Irisarri F" first="Fátima" last="Irisarri">Fátima Irisarri</name></author><author><name sortKey="Fernandez Alonso, Mirian" sort="Fernandez Alonso, Mirian" uniqKey="Fernandez Alonso M" first="Mirian" last="Fernández Alonso">Mirian Fernández Alonso</name></author><author><name sortKey="Salcedo, Esther" sort="Salcedo, Esther" uniqKey="Salcedo E" first="Esther" last="Salcedo">Esther Salcedo</name></author></analytic><series><title level="j">Revista espanola de salud publica</title><idno type="eISSN">2173-9110</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent (MeSH)</term><term>Adult (MeSH)</term><term>Aged (MeSH)</term><term>Child (MeSH)</term><term>Child, Preschool (MeSH)</term><term>Female (MeSH)</term><term>Humans (MeSH)</term><term>Infant (MeSH)</term><term>Influenza A Virus, H1N1 Subtype (MeSH)</term><term>Influenza, Human (epidemiology)</term><term>Male (MeSH)</term><term>Middle Aged (MeSH)</term><term>Pandemics (MeSH)</term><term>Seasons (MeSH)</term><term>Spain (epidemiology)</term><term>Young Adult (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adolescent (MeSH)</term><term>Adulte (MeSH)</term><term>Adulte d'âge moyen (MeSH)</term><term>Enfant (MeSH)</term><term>Enfant d'âge préscolaire (MeSH)</term><term>Espagne (épidémiologie)</term><term>Femelle (MeSH)</term><term>Grippe humaine (épidémiologie)</term><term>Humains (MeSH)</term><term>Jeune adulte (MeSH)</term><term>Mâle (MeSH)</term><term>Nourrisson (MeSH)</term><term>Pandémies (MeSH)</term><term>Saisons (MeSH)</term><term>Sous-type H1N1 du virus de la grippe A (MeSH)</term><term>Sujet âgé (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" qualifier="epidemiology" xml:lang="en"><term>Spain</term></keywords><keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Influenza, Human</term></keywords><keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Espagne</term><term>Grippe humaine</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Aged</term><term>Child</term><term>Child, Preschool</term><term>Female</term><term>Humans</term><term>Infant</term><term>Influenza A Virus, H1N1 Subtype</term><term>Male</term><term>Middle Aged</term><term>Pandemics</term><term>Seasons</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>Enfant</term><term>Enfant d'âge préscolaire</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Mâle</term><term>Nourrisson</term><term>Pandémies</term><term>Saisons</term><term>Sous-type H1N1 du virus de la grippe A</term><term>Sujet âgé</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Espagne</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b></p><p>Two waves of influenza (H1N1) 2009 were produced in Navarre in 2009, one in the summer and the other in the fall. We aim to compare the characteristics of the two epidemic waves.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>We analysed individual influenza reports, virological confirmations in the primary care sentinel network, and hospitalised cases with confirmed influenza in Navarre. We compared the summer period (week 21 to 39 in 2009) with the fall-winter period (week 40 in 2009 to 20 in 2010).</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>Two waves of influenza A(H1N1)2009 occurred during 2009, with peaks in July and November. In the summer (week 21 to 39) 4389 cases of influenza syndrome were reported, with young adults the most affected group (58% aged 15-44 years). The highest incidence was registered after the San Fermin fiesta (92 cases per 100,000 population in week 29), with immediate return to baseline levels. A second wave occurred in the fall, with rates up to 7 times higher (667 cases per 100,000 in week 45); they remained above the epidemic threshold for 9 weeks, with children aged 5-14 years (111 per 1000) the most affected group. In the peak of both waves the percentage of smears confirmed for influenza reached 60%. During the summer there were 66 admissions with confirmed influenza (H1N1) 2009, and 158 than in the fall. The proportion of cases requiring admission to hospital was higher in the summer (1.5%) than in fall (0.8%: p<0,0001).</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSION</b></p><p>Influenza circulation was much lower in the summer. Serious cases occurred in periods of both high and low incidence of influenza syndromes.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21750842</PMID><DateCompleted><Year>2011</Year><Month>12</Month><Day>01</Day></DateCompleted><DateRevised><Year>2016</Year><Month>01</Month><Day>26</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">2173-9110</ISSN><JournalIssue CitedMedium="Internet"><Volume>85</Volume><Issue>1</Issue><PubDate><MedlineDate>2011 Jan-Feb</MedlineDate></PubDate></JournalIssue><Title>Revista espanola de salud publica</Title><ISOAbbreviation>Rev. Esp. Salud Publica</ISOAbbreviation></Journal><ArticleTitle>[Differences between summer and fall waves of influenza in the pandemic of influenza (H1N1) 2009 in Navarre, Spain].</ArticleTitle><Pagination><MedlinePgn>47-56</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1590/S1135-57272011000100006</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S1135-57272011000100006</ELocationID><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Two waves of influenza (H1N1) 2009 were produced in Navarre in 2009, one in the summer and the other in the fall. We aim to compare the characteristics of the two epidemic waves.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">We analysed individual influenza reports, virological confirmations in the primary care sentinel network, and hospitalised cases with confirmed influenza in Navarre. We compared the summer period (week 21 to 39 in 2009) with the fall-winter period (week 40 in 2009 to 20 in 2010).</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">Two waves of influenza A(H1N1)2009 occurred during 2009, with peaks in July and November. In the summer (week 21 to 39) 4389 cases of influenza syndrome were reported, with young adults the most affected group (58% aged 15-44 years). The highest incidence was registered after the San Fermin fiesta (92 cases per 100,000 population in week 29), with immediate return to baseline levels. A second wave occurred in the fall, with rates up to 7 times higher (667 cases per 100,000 in week 45); they remained above the epidemic threshold for 9 weeks, with children aged 5-14 years (111 per 1000) the most affected group. In the peak of both waves the percentage of smears confirmed for influenza reached 60%. During the summer there were 66 admissions with confirmed influenza (H1N1) 2009, and 158 than in the fall. The proportion of cases requiring admission to hospital was higher in the summer (1.5%) than in fall (0.8%: p<0,0001).</AbstractText><AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">Influenza circulation was much lower in the summer. Serious cases occurred in periods of both high and low incidence of influenza syndromes.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Castilla</LastName><ForeName>Jesús</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Instituto de Salud Pública de Navarra, Leyre 15, Pamplona. jcastilc@navarra.es</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Guevara</LastName><ForeName>Marcela</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>García Cenoz</LastName><ForeName>Manuel</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Reina</LastName><ForeName>Gabriel</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Martínez Artola</LastName><ForeName>Víctor</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Zamora</LastName><ForeName>M Jesús</ForeName><Initials>MJ</Initials></Author><Author ValidYN="Y"><LastName>Irisarri</LastName><ForeName>Fátima</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Fernández Alonso</LastName><ForeName>Mirian</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Salcedo</LastName><ForeName>Esther</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><CollectiveName>Red de Médicos Centinela</CollectiveName></Author><Author ValidYN="Y"><CollectiveName>Red de Vigilancia Epidemiológica y Microbiológica de Gripe de Navarra</CollectiveName></Author></AuthorList><Language>spa</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><PublicationType UI="D004740">English Abstract</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><VernacularTitle>Diferencias entre las ondas gripales de verano y de otoño durante la pandemia de gripe (H1N1) 2009 en Navarra.</VernacularTitle></Article><MedlineJournalInfo><Country>Spain</Country><MedlineTA>Rev Esp Salud Publica</MedlineTA><NlmUniqueID>9600212</NlmUniqueID><ISSNLinking>1135-5727</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000293" MajorTopicYN="N">Adolescent</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002648" MajorTopicYN="N">Child</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002675" MajorTopicYN="N">Child, Preschool</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007223" MajorTopicYN="N">Infant</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D053118" MajorTopicYN="Y">Influenza A Virus, H1N1 Subtype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007251" MajorTopicYN="N">Influenza, Human</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="Y">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058873" MajorTopicYN="N">Pandemics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="Y">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013030" MajorTopicYN="N" Type="Geographic">Spain</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055815" MajorTopicYN="N">Young Adult</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>7</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>7</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2011</Year><Month>12</Month><Day>13</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21750842</ArticleId><ArticleId IdType="pii">S1135-57272011000100006</ArticleId><ArticleId IdType="doi">10.1590/S1135-57272011000100006</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country></list><tree><noCountry><name sortKey="Fernandez Alonso, Mirian" sort="Fernandez Alonso, Mirian" uniqKey="Fernandez Alonso M" first="Mirian" last="Fernández Alonso">Mirian Fernández Alonso</name><name sortKey="Garcia Cenoz, Manuel" sort="Garcia Cenoz, Manuel" uniqKey="Garcia Cenoz M" first="Manuel" last="García Cenoz">Manuel García Cenoz</name><name sortKey="Guevara, Marcela" sort="Guevara, Marcela" uniqKey="Guevara M" first="Marcela" last="Guevara">Marcela Guevara</name><name sortKey="Irisarri, Fatima" sort="Irisarri, Fatima" uniqKey="Irisarri F" first="Fátima" last="Irisarri">Fátima Irisarri</name><name sortKey="Martinez Artola, Victor" sort="Martinez Artola, Victor" uniqKey="Martinez Artola V" first="Víctor" last="Martínez Artola">Víctor Martínez Artola</name><name sortKey="Reina, Gabriel" sort="Reina, Gabriel" uniqKey="Reina G" first="Gabriel" last="Reina">Gabriel Reina</name><name sortKey="Salcedo, Esther" sort="Salcedo, Esther" uniqKey="Salcedo E" first="Esther" last="Salcedo">Esther Salcedo</name><name sortKey="Zamora, M Jesus" sort="Zamora, M Jesus" uniqKey="Zamora M" first="M Jesús" last="Zamora">M Jesús Zamora</name></noCountry><country name="Espagne"><noRegion><name sortKey="Castilla, Jesus" sort="Castilla, Jesus" uniqKey="Castilla J" first="Jesús" last="Castilla">Jesús Castilla</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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