Comparison of the pandemic H1N1 2009 experience in the Southern Hemisphere with pandemic expectations
Identifieur interne : 000B32 ( Main/Exploration ); précédent : 000B31; suivant : 000B33Comparison of the pandemic H1N1 2009 experience in the Southern Hemisphere with pandemic expectations
Auteurs : Kristina A. Grant ; James E. Fielding ; Geoff N. Mercer ; Dale Carcione [Australie] ; Lisa Lopez [Nouvelle-Zélande] ; David W. Smith [Australie] ; Q. Sue Huang [Nouvelle-Zélande] ; Heath A. KellySource :
- Australian and New Zealand Journal of Public Health [ 1326-0200 ] ; 2012-08.
English descriptors
- Teeft :
- Antigenic shift, Aust, Case fatality risk, Diseases reference laboratory, Effective reproduction number, Environmental science, Epidemiological characteristics, Epidemiology, Euro surveill, Hospitalisation, Infectious disease, Influenza, Influenza season, Influenza surveillance, Influenza viruses, Kelly, Median, Median ages, National centre, Novel reassortant, Pandemic, Pandemic expectations, Pandemic influenza, Pandemic planning, Pandemic strain, Population health, Pregnant women, Previous pandemics, Previous seasons, Public health, Public health association, Pubmed pmid, Reproduction number, Respi viruses, Respiratory swabs, Seasonal influenza, Second pandemic wave, Second wave, Sentinel, Sentinel surveillance, Sentinel surveillance illness rates, Sentinel surveillance schemes, Sentinel surveillance swabs, Sentinel surveillance systems, Seroprevalence study, Southern hemisphere, Surveillance, Surveillance scheme, Surveillance schemes, Surveillance systems, Swab, Total population, Vaccination programs, Various infectiousness, Victoria, Western australia, Winter influenza season, Younger people, Zealand, Zealand journal, Zealand ministry.
Abstract
Objective: To describe the epidemiological characteristics of the 2009 H1N1 pandemic virus (pH1N1) over the 2009 and 2010 influenza seasons in Australia and New Zealand (NZ) and compare them with expectations based on previous pandemics. Methods: Laboratory‐confirmed influenza and influenza‐like illness (ILI) data were collected from established general practitioner sentinel surveillance schemes in NZ, Victoria and Western Australia (WA) throughout the 2009 and 2010 winter influenza seasons. Respiratory swabs from a sample of ILI patients were tested for influenza type and subtype. ILI rates and laboratory‐confirmed influenza data were analysed by age group and over time. Morbidity, mortality and reproductive number data were collated from the published literature. Results: Peak ILI rates and the percentage of influenza‐positive swabs from ILI patients from all sentinel surveillance schemes were considerably lower in 2010 than 2009. Compared to the population, cases of ILI were over‐represented in the young. While the age distributions in NZ and WA remained consistent, ILI cases were significantly younger in Victoria in 2009 compared to 2010. In Victoria, laboratory‐confirmed pH1N1 comprised up to 97% of influenza‐positive swabs in 2009 but only 56–87% in 2010. Mortality and hospitalisations were lower in 2010. The effective reproduction number (R) for pH1N1 was estimated to be 1.2–1.5 in NZ and WA, similar to estimated R values for seasonal influenza. Data from the surveillance systems indicated differences in the epidemiology of pH1N1 compared to expectations based on previous pandemics. In particular, there was no evidence of a second pandemic wave associated with increased mortality, and complete influenza strain replacement did not occur. Implications: Pandemic planning needs to accommodate the potential for influenza viruses to produce pandemics of various infectiousness and degrees of severity.
Url:
DOI: 10.1111/j.1753-6405.2012.00886.x
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001122
- to stream Istex, to step Curation: 001122
- to stream Istex, to step Checkpoint: 000109
- to stream Main, to step Merge: 000B35
- to stream Main, to step Curation: 000B32
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Comparison of the pandemic H1N1 2009 experience in the Southern Hemisphere with pandemic expectations</title><author><name sortKey="Grant, Kristina A" sort="Grant, Kristina A" uniqKey="Grant K" first="Kristina A." last="Grant">Kristina A. Grant</name></author><author><name sortKey="Fielding, James E" sort="Fielding, James E" uniqKey="Fielding J" first="James E." last="Fielding">James E. Fielding</name></author><author><name sortKey="Mercer, Geoff N" sort="Mercer, Geoff N" uniqKey="Mercer G" first="Geoff N." last="Mercer">Geoff N. Mercer</name></author><author><name sortKey="Carcione, Dale" sort="Carcione, Dale" uniqKey="Carcione D" first="Dale" last="Carcione">Dale Carcione</name></author><author><name sortKey="Lopez, Lisa" sort="Lopez, Lisa" uniqKey="Lopez L" first="Lisa" last="Lopez">Lisa Lopez</name></author><author><name sortKey="Smith, David W" sort="Smith, David W" uniqKey="Smith D" first="David W." last="Smith">David W. Smith</name></author><author><name sortKey="Huang, Q Sue" sort="Huang, Q Sue" uniqKey="Huang Q" first="Q. Sue" last="Huang">Q. Sue Huang</name></author><author><name sortKey="Kelly, Heath A" sort="Kelly, Heath A" uniqKey="Kelly H" first="Heath A." last="Kelly">Heath A. Kelly</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:5B8594A919AA249C55CFCE5ED8D7CACE4BA875D8</idno><date when="2012" year="2012">2012</date><idno type="doi">10.1111/j.1753-6405.2012.00886.x</idno><idno type="url">https://api.istex.fr/ark:/67375/WNG-0X0N8DMZ-W/fulltext.pdf</idno><idno type="wicri:Area/Istex/Corpus">001122</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001122</idno><idno type="wicri:Area/Istex/Curation">001122</idno><idno type="wicri:Area/Istex/Checkpoint">000109</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000109</idno><idno type="wicri:doubleKey">1326-0200:2012:Grant K:comparison:of:the</idno><idno type="wicri:Area/Main/Merge">000B35</idno><idno type="wicri:Area/Main/Curation">000B32</idno><idno type="wicri:Area/Main/Exploration">000B32</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main">Comparison of the pandemic H1N1 2009 experience in the Southern Hemisphere with pandemic expectations</title><author><name sortKey="Grant, Kristina A" sort="Grant, Kristina A" uniqKey="Grant K" first="Kristina A." last="Grant">Kristina A. Grant</name><affiliation><wicri:noCountry code="subField">Victoria</wicri:noCountry></affiliation></author><author><name sortKey="Fielding, James E" sort="Fielding, James E" uniqKey="Fielding J" first="James E." last="Fielding">James E. Fielding</name><affiliation><wicri:noCountry code="subField">Territory</wicri:noCountry></affiliation></author><author><name sortKey="Mercer, Geoff N" sort="Mercer, Geoff N" uniqKey="Mercer G" first="Geoff N." last="Mercer">Geoff N. Mercer</name><affiliation><wicri:noCountry code="subField">Territory</wicri:noCountry></affiliation></author><author><name sortKey="Carcione, Dale" sort="Carcione, Dale" uniqKey="Carcione D" first="Dale" last="Carcione">Dale Carcione</name><affiliation wicri:level="2"><country>Australie</country><placeName><region type="state">Australie-Occidentale</region></placeName><wicri:cityArea>Communicable Disease Control Directorate, Department of Health</wicri:cityArea></affiliation></author><author><name sortKey="Lopez, Lisa" sort="Lopez, Lisa" uniqKey="Lopez L" first="Lisa" last="Lopez">Lisa Lopez</name><affiliation wicri:level="1"><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute of Environmental Science and Research, National Centre for Biosecurity and Infectious Disease, Upper Hutt</wicri:regionArea><wicri:noRegion>Upper Hutt</wicri:noRegion></affiliation></author><author><name sortKey="Smith, David W" sort="Smith, David W" uniqKey="Smith D" first="David W." last="Smith">David W. Smith</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>PathWest Laboratory Medicine Western Australia; School of Biomolecular, Biomedical and Chemical Sciences and School of Pathology and Laboratory Medicine</wicri:regionArea><wicri:noRegion>Biomedical and Chemical Sciences and School of Pathology and Laboratory Medicine</wicri:noRegion></affiliation></author><author><name sortKey="Huang, Q Sue" sort="Huang, Q Sue" uniqKey="Huang Q" first="Q. Sue" last="Huang">Q. Sue Huang</name><affiliation wicri:level="1"><country xml:lang="fr">Nouvelle-Zélande</country><wicri:regionArea>Institute of Environmental Science and Research, National Centre for Biosecurity and Infectious Disease</wicri:regionArea><wicri:noRegion>National Centre for Biosecurity and Infectious Disease</wicri:noRegion></affiliation></author><author><name sortKey="Kelly, Heath A" sort="Kelly, Heath A" uniqKey="Kelly H" first="Heath A." last="Kelly">Heath A. Kelly</name><affiliation><wicri:noCountry code="subField">Territory</wicri:noCountry></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Australian and New Zealand Journal of Public Health</title><title level="j" type="alt">AUSTRALIAN NEW ZEALJOURNAL PUBLIC HEALTH</title><idno type="ISSN">1326-0200</idno><idno type="eISSN">1753-6405</idno><imprint><biblScope unit="vol">36</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="364">364</biblScope><biblScope unit="page" to="368">368</biblScope><biblScope unit="page-count">5</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2012-08">2012-08</date></imprint><idno type="ISSN">1326-0200</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1326-0200</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Antigenic shift</term><term>Aust</term><term>Case fatality risk</term><term>Diseases reference laboratory</term><term>Effective reproduction number</term><term>Environmental science</term><term>Epidemiological characteristics</term><term>Epidemiology</term><term>Euro surveill</term><term>Hospitalisation</term><term>Infectious disease</term><term>Influenza</term><term>Influenza season</term><term>Influenza surveillance</term><term>Influenza viruses</term><term>Kelly</term><term>Median</term><term>Median ages</term><term>National centre</term><term>Novel reassortant</term><term>Pandemic</term><term>Pandemic expectations</term><term>Pandemic influenza</term><term>Pandemic planning</term><term>Pandemic strain</term><term>Population health</term><term>Pregnant women</term><term>Previous pandemics</term><term>Previous seasons</term><term>Public health</term><term>Public health association</term><term>Pubmed pmid</term><term>Reproduction number</term><term>Respi viruses</term><term>Respiratory swabs</term><term>Seasonal influenza</term><term>Second pandemic wave</term><term>Second wave</term><term>Sentinel</term><term>Sentinel surveillance</term><term>Sentinel surveillance illness rates</term><term>Sentinel surveillance schemes</term><term>Sentinel surveillance swabs</term><term>Sentinel surveillance systems</term><term>Seroprevalence study</term><term>Southern hemisphere</term><term>Surveillance</term><term>Surveillance scheme</term><term>Surveillance schemes</term><term>Surveillance systems</term><term>Swab</term><term>Total population</term><term>Vaccination programs</term><term>Various infectiousness</term><term>Victoria</term><term>Western australia</term><term>Winter influenza season</term><term>Younger people</term><term>Zealand</term><term>Zealand journal</term><term>Zealand ministry</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objective: To describe the epidemiological characteristics of the 2009 H1N1 pandemic virus (pH1N1) over the 2009 and 2010 influenza seasons in Australia and New Zealand (NZ) and compare them with expectations based on previous pandemics. Methods: Laboratory‐confirmed influenza and influenza‐like illness (ILI) data were collected from established general practitioner sentinel surveillance schemes in NZ, Victoria and Western Australia (WA) throughout the 2009 and 2010 winter influenza seasons. Respiratory swabs from a sample of ILI patients were tested for influenza type and subtype. ILI rates and laboratory‐confirmed influenza data were analysed by age group and over time. Morbidity, mortality and reproductive number data were collated from the published literature. Results: Peak ILI rates and the percentage of influenza‐positive swabs from ILI patients from all sentinel surveillance schemes were considerably lower in 2010 than 2009. Compared to the population, cases of ILI were over‐represented in the young. While the age distributions in NZ and WA remained consistent, ILI cases were significantly younger in Victoria in 2009 compared to 2010. In Victoria, laboratory‐confirmed pH1N1 comprised up to 97% of influenza‐positive swabs in 2009 but only 56–87% in 2010. Mortality and hospitalisations were lower in 2010. The effective reproduction number (R) for pH1N1 was estimated to be 1.2–1.5 in NZ and WA, similar to estimated R values for seasonal influenza. Data from the surveillance systems indicated differences in the epidemiology of pH1N1 compared to expectations based on previous pandemics. In particular, there was no evidence of a second pandemic wave associated with increased mortality, and complete influenza strain replacement did not occur. Implications: Pandemic planning needs to accommodate the potential for influenza viruses to produce pandemics of various infectiousness and degrees of severity.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Nouvelle-Zélande</li></country><region><li>Australie-Occidentale</li></region></list><tree><noCountry><name sortKey="Fielding, James E" sort="Fielding, James E" uniqKey="Fielding J" first="James E." last="Fielding">James E. Fielding</name><name sortKey="Grant, Kristina A" sort="Grant, Kristina A" uniqKey="Grant K" first="Kristina A." last="Grant">Kristina A. Grant</name><name sortKey="Kelly, Heath A" sort="Kelly, Heath A" uniqKey="Kelly H" first="Heath A." last="Kelly">Heath A. Kelly</name><name sortKey="Mercer, Geoff N" sort="Mercer, Geoff N" uniqKey="Mercer G" first="Geoff N." last="Mercer">Geoff N. Mercer</name></noCountry><country name="Australie"><region name="Australie-Occidentale"><name sortKey="Carcione, Dale" sort="Carcione, Dale" uniqKey="Carcione D" first="Dale" last="Carcione">Dale Carcione</name></region><name sortKey="Smith, David W" sort="Smith, David W" uniqKey="Smith D" first="David W." last="Smith">David W. Smith</name></country><country name="Nouvelle-Zélande"><noRegion><name sortKey="Lopez, Lisa" sort="Lopez, Lisa" uniqKey="Lopez L" first="Lisa" last="Lopez">Lisa Lopez</name></noRegion><name sortKey="Huang, Q Sue" sort="Huang, Q Sue" uniqKey="Huang Q" first="Q. Sue" last="Huang">Q. Sue Huang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/H2N2V1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000B32 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000B32 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Sante
|area= H2N2V1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:5B8594A919AA249C55CFCE5ED8D7CACE4BA875D8
|texte= Comparison of the pandemic H1N1 2009 experience in the Southern Hemisphere with pandemic expectations
}}
| This area was generated with Dilib version V0.6.33. |  |