Epidemiology of the 2009 influenza pandemic in Spain. The Spanish Influenza Surveillance System.
Identifieur interne : 000327 ( Main/Exploration ); précédent : 000326; suivant : 000328Epidemiology of the 2009 influenza pandemic in Spain. The Spanish Influenza Surveillance System.
Auteurs : Amparo Larrauri Cámara [Espagne] ; Silvia Jiménez-Jorge ; Salvador De Mateo Onta N ; Francisco Pozo Sánchez ; Juan Ledesma Moreno ; Inmaculada Casas FlechaSource :
- Enfermedades infecciosas y microbiologia clinica [ 1578-1852 ] ; 2012.
Descripteurs français
- KwdFr :
- Adolescent (MeSH), Adulte (MeSH), Adulte d'âge moyen (MeSH), Enfant (MeSH), Enfant d'âge préscolaire (MeSH), Espagne (épidémiologie), Grippe humaine (complications), Grippe humaine (épidémiologie), Humains (MeSH), Indice de gravité de la maladie (MeSH), Jeune adulte (MeSH), Pandémies (MeSH), Sous-type H1N1 du virus de la grippe A (MeSH), Sujet âgé (MeSH), Surveillance de la population (MeSH).
- MESH :
- Wicri :
- geographic : Espagne.
English descriptors
- KwdEn :
- Adolescent (MeSH), Adult (MeSH), Aged (MeSH), Child (MeSH), Child, Preschool (MeSH), Humans (MeSH), Influenza A Virus, H1N1 Subtype (MeSH), Influenza, Human (complications), Influenza, Human (epidemiology), Middle Aged (MeSH), Pandemics (MeSH), Population Surveillance (MeSH), Severity of Illness Index (MeSH), Spain (epidemiology), Young Adult (MeSH).
- MESH :
- geographic , epidemiology : Spain.
- complications : Influenza, Human.
- epidemiology : Influenza, Human.
- Adolescent, Adult, Aged, Child, Child, Preschool, Humans, Influenza A Virus, H1N1 Subtype, Middle Aged, Pandemics, Population Surveillance, Severity of Illness Index, Young Adult.
Abstract
In accordance with European Centre for Disease Prevention and Control recommendations, the Spanish Influenza Surveillance System (SISS) maintained its activity during the summer of 2009, and since July 2009 the pandemic virus activity was monitored by the SISS. In this paper, we describe the epidemiological and virological characteristics of the 2009 pandemic in the Spain through the SISS. Spain experienced a transmission of the new A(H1N1)pdm09 influenza virus during the summer of 2009, which gradually increased, resulting in the pandemic wave in early autumn of that year. The reproductive number R0, estimated during the growth phase of the pandemic wave (1.32; 95% confidence interval [95%CI], 1.29-1.36), showed a transmissibility comparable to preceding pandemics. There was an almost complete replacement of the previous seasonal A(H1N1) influenza virus by the pandemic virus A(H1N1)pdm09. The pandemic virus produced a greater burden of illness than seasonal influenza in children younger than 15 years old, while the incidence in those older than 64 years was lower compared with previous inter-pandemic seasons. Nevertheless, in Spain the 2009 pandemic was characterized as mild, considering the duration of the pandemic period and the influenza detection rate, both in the range of those observed in previous inter-pandemic seasons. Also, the case fatality ratio (CFR) was estimated at 0.58 deaths/1,000 confirmed ILI cases (95%CI, 0.52-0.64), in the range of the two previous pandemics of 1957 and 1968, with the highest CFR observed in the older than 64 years age group. In the 2009 pandemic there was a higher percentage of pandemic confirmed deaths in the younger ages, compared to seasonal influenza, since only 28% of the reported deaths occurred in persons aged 64 years and older.
DOI: 10.1016/S0213-005X(12)70098-8
PubMed: 23116786
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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In this paper, we describe the epidemiological and virological characteristics of the 2009 pandemic in the Spain through the SISS. Spain experienced a transmission of the new A(H1N1)pdm09 influenza virus during the summer of 2009, which gradually increased, resulting in the pandemic wave in early autumn of that year. The reproductive number R0, estimated during the growth phase of the pandemic wave (1.32; 95% confidence interval [95%CI], 1.29-1.36), showed a transmissibility comparable to preceding pandemics. There was an almost complete replacement of the previous seasonal A(H1N1) influenza virus by the pandemic virus A(H1N1)pdm09. The pandemic virus produced a greater burden of illness than seasonal influenza in children younger than 15 years old, while the incidence in those older than 64 years was lower compared with previous inter-pandemic seasons. Nevertheless, in Spain the 2009 pandemic was characterized as mild, considering the duration of the pandemic period and the influenza detection rate, both in the range of those observed in previous inter-pandemic seasons. Also, the case fatality ratio (CFR) was estimated at 0.58 deaths/1,000 confirmed ILI cases (95%CI, 0.52-0.64), in the range of the two previous pandemics of 1957 and 1968, with the highest CFR observed in the older than 64 years age group. In the 2009 pandemic there was a higher percentage of pandemic confirmed deaths in the younger ages, compared to seasonal influenza, since only 28% of the reported deaths occurred in persons aged 64 years and older.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23116786</PMID><DateCompleted><Year>2013</Year><Month>12</Month><Day>02</Day></DateCompleted><DateRevised><Year>2012</Year><Month>11</Month><Day>02</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1578-1852</ISSN><JournalIssue CitedMedium="Internet"><Volume>30 Suppl 4</Volume><PubDate><Year>2012</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Enfermedades infecciosas y microbiologia clinica</Title><ISOAbbreviation>Enferm. Infecc. Microbiol. Clin.</ISOAbbreviation></Journal><ArticleTitle>Epidemiology of the 2009 influenza pandemic in Spain. The Spanish Influenza Surveillance System.</ArticleTitle><Pagination><MedlinePgn>2-9</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/S0213-005X(12)70098-8</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0213-005X(12)70098-8</ELocationID><Abstract><AbstractText>In accordance with European Centre for Disease Prevention and Control recommendations, the Spanish Influenza Surveillance System (SISS) maintained its activity during the summer of 2009, and since July 2009 the pandemic virus activity was monitored by the SISS. In this paper, we describe the epidemiological and virological characteristics of the 2009 pandemic in the Spain through the SISS. Spain experienced a transmission of the new A(H1N1)pdm09 influenza virus during the summer of 2009, which gradually increased, resulting in the pandemic wave in early autumn of that year. The reproductive number R0, estimated during the growth phase of the pandemic wave (1.32; 95% confidence interval [95%CI], 1.29-1.36), showed a transmissibility comparable to preceding pandemics. There was an almost complete replacement of the previous seasonal A(H1N1) influenza virus by the pandemic virus A(H1N1)pdm09. The pandemic virus produced a greater burden of illness than seasonal influenza in children younger than 15 years old, while the incidence in those older than 64 years was lower compared with previous inter-pandemic seasons. Nevertheless, in Spain the 2009 pandemic was characterized as mild, considering the duration of the pandemic period and the influenza detection rate, both in the range of those observed in previous inter-pandemic seasons. Also, the case fatality ratio (CFR) was estimated at 0.58 deaths/1,000 confirmed ILI cases (95%CI, 0.52-0.64), in the range of the two previous pandemics of 1957 and 1968, with the highest CFR observed in the older than 64 years age group. In the 2009 pandemic there was a higher percentage of pandemic confirmed deaths in the younger ages, compared to seasonal influenza, since only 28% of the reported deaths occurred in persons aged 64 years and older.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier España, S.L. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Larrauri Cámara</LastName><ForeName>Amparo</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Área de Vigilancia de la Salud Pública, Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, Spain. alarrauri@isciii.es</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jiménez-Jorge</LastName><ForeName>Silvia</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Mateo Ontañón</LastName><ForeName>Salvador de</ForeName><Initials>Sd</Initials></Author><Author ValidYN="Y"><LastName>Pozo Sánchez</LastName><ForeName>Francisco</ForeName><Initials>F</Initials></Author><Author ValidYN="Y"><LastName>Ledesma Moreno</LastName><ForeName>Juan</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Casas Flecha</LastName><ForeName>Inmaculada</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><CollectiveName>Spanish Influenza Surveillance System (SISS)</CollectiveName></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Spain</Country><MedlineTA>Enferm Infecc Microbiol Clin</MedlineTA><NlmUniqueID>9104081</NlmUniqueID><ISSNLinking>0213-005X</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="D006801" MajorTopicYN="N">Humans</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="Q000150" MajorTopicYN="N">complications</QualifierName><QualifierName UI="Q000453" MajorTopicYN="Y">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058873" MajorTopicYN="Y">Pandemics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011159" MajorTopicYN="N">Population Surveillance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012720" MajorTopicYN="N">Severity of Illness Index</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>2012</Year><Month>11</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>11</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>12</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23116786</ArticleId><ArticleId IdType="pii">S0213-005X(12)70098-8</ArticleId><ArticleId IdType="doi">10.1016/S0213-005X(12)70098-8</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country><region><li>Communauté de Madrid</li></region><settlement><li>Madrid</li></settlement></list><tree><noCountry><name sortKey="Casas Flecha, Inmaculada" sort="Casas Flecha, Inmaculada" uniqKey="Casas Flecha I" first="Inmaculada" last="Casas Flecha">Inmaculada Casas Flecha</name><name sortKey="Jimenez Jorge, Silvia" sort="Jimenez Jorge, Silvia" uniqKey="Jimenez Jorge S" first="Silvia" last="Jiménez-Jorge">Silvia Jiménez-Jorge</name><name sortKey="Ledesma Moreno, Juan" sort="Ledesma Moreno, Juan" uniqKey="Ledesma Moreno J" first="Juan" last="Ledesma Moreno">Juan Ledesma Moreno</name><name sortKey="Mateo Onta N, Salvador De" sort="Mateo Onta N, Salvador De" uniqKey="Mateo Onta N S" first="Salvador De" last="Mateo Onta N">Salvador De Mateo Onta N</name><name sortKey="Pozo Sanchez, Francisco" sort="Pozo Sanchez, Francisco" uniqKey="Pozo Sanchez F" first="Francisco" last="Pozo Sánchez">Francisco Pozo Sánchez</name></noCountry><country name="Espagne"><region name="Communauté de Madrid"><name sortKey="Larrauri Camara, Amparo" sort="Larrauri Camara, Amparo" uniqKey="Larrauri Camara A" first="Amparo" last="Larrauri Cámara">Amparo Larrauri Cámara</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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