Household Transmission of 2009 Influenza A (H1N1) Virus after a School-Based Outbreak in New York City, April–May 2009
Identifieur interne : 002646 ( Main/Exploration ); précédent : 002645; suivant : 002647Household Transmission of 2009 Influenza A (H1N1) Virus after a School-Based Outbreak in New York City, April–May 2009
Auteurs : Anne Marie France [Géorgie (pays), États-Unis] ; Michael Jackson [Géorgie (pays)] ; Stephanie Schrag [Géorgie (pays)] ; Michael Lynch [Géorgie (pays)] ; Christopher Zimmerman [États-Unis] ; Matthew Biggerstaff [Géorgie (pays)] ; James Hadler [États-Unis]Source :
- The Journal of Infectious Diseases [ 0022-1899 ] ; 2010.
Abstract
In April 2009, an outbreak due to infection with the 2009 pandemic influenza A (H1N1) virus (pH1N1) was investigated in a New York City high school. We surveyed household contacts of ill students to characterize the extent of transmission within households, identify contact groups at highest risk for illness, and assess the potential for preventing household transmission. Influenza-like illness (ILI) was reported by 79 of 702 household contacts (11.3% attack rate). Multivariate analysis showed that older age was protective: for each increasing year of age, the risk of ILI was reduced 5%. Additional protective factors included antiviral prophylaxis and having had a household discussion about influenza. Providing care for the index case patient and watching television with the index case patient were risk factors among parents and siblings, respectively. Fifty percent of cases occurred within 3 days of onset of illness in the student. These factors have implications for mitigating the impact of pH1N1 transmission.
Url:
DOI: 10.1086/651145
Affiliations:
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outbreak due to infection with the 2009 pandemic influenza A (H1N1) virus (pH1N1) was investigated in a New York City high school. We surveyed household contacts of ill students to characterize the extent of transmission within households, identify contact groups at highest risk for illness, and assess the potential for preventing household transmission. Influenza-like illness (ILI) was reported by 79 of 702 household contacts (11.3% attack rate). Multivariate analysis showed that older age was protective: for each increasing year of age, the risk of ILI was reduced 5%. Additional protective factors included antiviral prophylaxis and having had a household discussion about influenza. Providing care for the index case patient and watching television with the index case patient were risk factors among parents and siblings, respectively. Fifty percent of cases occurred within 3 days of onset of illness in the student. These factors have implications for mitigating the impact of pH1N1 transmission.</div></front></TEI><affiliations><list><country><li>Géorgie (pays)</li><li>États-Unis</li></country><region><li>État de New York</li></region></list><tree><country name="Géorgie (pays)"><noRegion><name sortKey="France, Anne Marie" sort="France, Anne Marie" uniqKey="France A" first="Anne Marie" last="France">Anne Marie France</name></noRegion><name sortKey="Biggerstaff, Matthew" sort="Biggerstaff, Matthew" uniqKey="Biggerstaff M" first="Matthew" last="Biggerstaff">Matthew Biggerstaff</name><name sortKey="Jackson, Michael" sort="Jackson, Michael" uniqKey="Jackson M" first="Michael" last="Jackson">Michael Jackson</name><name sortKey="Jackson, Michael" sort="Jackson, Michael" uniqKey="Jackson M" first="Michael" last="Jackson">Michael Jackson</name><name sortKey="Lynch, Michael" sort="Lynch, Michael" uniqKey="Lynch M" first="Michael" last="Lynch">Michael Lynch</name><name sortKey="Schrag, Stephanie" sort="Schrag, Stephanie" uniqKey="Schrag S" first="Stephanie" last="Schrag">Stephanie Schrag</name></country><country name="États-Unis"><region name="État de New York"><name sortKey="France, Anne Marie" sort="France, Anne Marie" uniqKey="France A" first="Anne Marie" last="France">Anne Marie France</name></region><name sortKey="France, Anne Marie" sort="France, Anne Marie" uniqKey="France A" first="Anne Marie" last="France">Anne Marie France</name><name sortKey="Hadler, James" sort="Hadler, James" uniqKey="Hadler J" first="James" last="Hadler">James Hadler</name><name sortKey="Zimmerman, Christopher" sort="Zimmerman, Christopher" uniqKey="Zimmerman C" first="Christopher" last="Zimmerman">Christopher Zimmerman</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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