Influenza Circulation and the Burden of Invasive Pneumococcal Pneumonia during a Non-pandemic Period in the United States
Identifieur interne : 003918 ( Main/Exploration ); précédent : 003917; suivant : 003919Influenza Circulation and the Burden of Invasive Pneumococcal Pneumonia during a Non-pandemic Period in the United States
Auteurs : Nicholas D. Walter [États-Unis] ; Thomas H. Jr Taylor [États-Unis] ; David K. Shay [États-Unis] ; William W. Thompson [États-Unis] ; Lynnette Brammer [États-Unis] ; Scott F. Dowell [États-Unis] ; Matthew R. Moore [États-Unis]Source :
- Clinical infectious diseases [ 1058-4838 ] ; 2010.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
Background. Animal models and data from influenza pandemics suggest that influenza infection predisposes individuals to pneumococcal pneumonia. Influenza may contribute to high winter rates of pneumococcal pneumonia during non-pandemic periods, but the magnitude of this effect is unknown. With use of United States surveillance data during 1995-2006, we estimated the association between influenza circulation and invasive pneumococcal pneumonia rates. Methods. Weekly invasive pneumococcal pneumonia incidence, defined by isolation of pneumococci from normally sterile sites in persons with clinical or radiographic pneumonia, was estimated from active population-based surveillance in 3 regions of the United States. We used influenza virus data collected by World Health Organization collaborating laboratories in the same 3 regions in seasonally adjusted negative binomial regression models to estimate the influenza-associated fraction of pneumococcal pneumonia. Results. During ∼185 million person-years of surveillance, we observed 21,239 episodes of invasive pneumococcal pneumonia; 485,691 specimens were tested for influenza. Influenza circulation was associated with 11%-14% of pneumococcal pneumonia during periods of influenza circulation and 5%-6% overall. In 2 of 3 regions, the association was strongest when influenza circulation data were lagged by 1 week. Conclusions. During recent seasonal influenza epidemics in the United States, a modest but potentially preventable fraction of invasive pneumococcal pneumonia was associated with influenza circulation.
Affiliations:
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Walter</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Epidemic Intelligence Service, Office of Workforce and Career Development, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Respiratory Diseases Branch, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Taylor, Thomas H Jr" sort="Taylor, Thomas H Jr" uniqKey="Taylor T" first="Thomas H. Jr" last="Taylor">Thomas H. Jr Taylor</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Division of Bacterial Diseases, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Shay, David K" sort="Shay, David K" uniqKey="Shay D" first="David K." last="Shay">David K. Shay</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Influenza Division, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Thompson, William W" sort="Thompson, William W" uniqKey="Thompson W" first="William W." last="Thompson">William W. Thompson</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Influenza Division, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Brammer, Lynnette" sort="Brammer, Lynnette" uniqKey="Brammer L" first="Lynnette" last="Brammer">Lynnette Brammer</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Influenza Division, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Dowell, Scott F" sort="Dowell, Scott F" uniqKey="Dowell S" first="Scott F." last="Dowell">Scott F. Dowell</name><affiliation wicri:level="2"><inist:fA14 i1="05"><s1>Coordinating Office of Global Health, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author><author><name sortKey="Moore, Matthew R" sort="Moore, Matthew R" uniqKey="Moore M" first="Matthew R." last="Moore">Matthew R. Moore</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Respiratory Diseases Branch, Centers for Disease Control and Prevention</s1><s2>Atlanta, Georgia</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Géorgie (États-Unis)</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Clinical infectious diseases</title><title level="j" type="abbreviated">Clin. infect. dis.</title><idno type="ISSN">1058-4838</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Clinical infectious diseases</title><title level="j" type="abbreviated">Clin. infect. dis.</title><idno type="ISSN">1058-4838</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Influenza</term><term>Pneumococcal infection</term><term>Pneumonia</term><term>Streptococcus pneumoniae</term><term>United States</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Grippe</term><term>Pneumococcie</term><term>Pneumonie</term><term>Etats-Unis</term><term>Streptococcus pneumoniae</term><term>Forme invasive</term><term>Pandémie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Background. Animal models and data from influenza pandemics suggest that influenza infection predisposes individuals to pneumococcal pneumonia. Influenza may contribute to high winter rates of pneumococcal pneumonia during non-pandemic periods, but the magnitude of this effect is unknown. With use of United States surveillance data during 1995-2006, we estimated the association between influenza circulation and invasive pneumococcal pneumonia rates. Methods. Weekly invasive pneumococcal pneumonia incidence, defined by isolation of pneumococci from normally sterile sites in persons with clinical or radiographic pneumonia, was estimated from active population-based surveillance in 3 regions of the United States. We used influenza virus data collected by World Health Organization collaborating laboratories in the same 3 regions in seasonally adjusted negative binomial regression models to estimate the influenza-associated fraction of pneumococcal pneumonia. Results. During ∼185 million person-years of surveillance, we observed 21,239 episodes of invasive pneumococcal pneumonia; 485,691 specimens were tested for influenza. Influenza circulation was associated with 11%-14% of pneumococcal pneumonia during periods of influenza circulation and 5%-6% overall. In 2 of 3 regions, the association was strongest when influenza circulation data were lagged by 1 week. Conclusions. During recent seasonal influenza epidemics in the United States, a modest but potentially preventable fraction of invasive pneumococcal pneumonia was associated with influenza circulation.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Géorgie (États-Unis)</li></region></list><tree><country name="États-Unis"><region name="Géorgie (États-Unis)"><name sortKey="Walter, Nicholas D" sort="Walter, Nicholas D" uniqKey="Walter N" first="Nicholas D." last="Walter">Nicholas D. Walter</name></region><name sortKey="Brammer, Lynnette" sort="Brammer, Lynnette" uniqKey="Brammer L" first="Lynnette" last="Brammer">Lynnette Brammer</name><name sortKey="Dowell, Scott F" sort="Dowell, Scott F" uniqKey="Dowell S" first="Scott F." last="Dowell">Scott F. Dowell</name><name sortKey="Moore, Matthew R" sort="Moore, Matthew R" uniqKey="Moore M" first="Matthew R." last="Moore">Matthew R. Moore</name><name sortKey="Shay, David K" sort="Shay, David K" uniqKey="Shay D" first="David K." last="Shay">David K. Shay</name><name sortKey="Taylor, Thomas H Jr" sort="Taylor, Thomas H Jr" uniqKey="Taylor T" first="Thomas H. Jr" last="Taylor">Thomas H. Jr Taylor</name><name sortKey="Thompson, William W" sort="Thompson, William W" uniqKey="Thompson W" first="William W." last="Thompson">William W. Thompson</name><name sortKey="Walter, Nicholas D" sort="Walter, Nicholas D" uniqKey="Walter N" first="Nicholas D." last="Walter">Nicholas D. 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