Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season

We conducted a nationwide hospital-based prospective study in Germany of influenza A(H1N1)pdm09 cases among children <15 years of age admitted to pediatric intensive care units and related deaths during the 2009–10 pandemic and the 2010–11 postpandemic influenza seasons. We identified 156 eligibl...

Full description

Bibliographic Details
Main Authors: Mathias Altmann, Lena Fiebig, Silke Buda, Rüdiger von Kries, Manuel Dehnert, Walter Haas
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2012-11-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/18/11/12-0719_article
_version_ 1818671263469535232
author Mathias Altmann
Lena Fiebig
Silke Buda
Rüdiger von Kries
Manuel Dehnert
Walter Haas
author_facet Mathias Altmann
Lena Fiebig
Silke Buda
Rüdiger von Kries
Manuel Dehnert
Walter Haas
author_sort Mathias Altmann
collection DOAJ
description We conducted a nationwide hospital-based prospective study in Germany of influenza A(H1N1)pdm09 cases among children <15 years of age admitted to pediatric intensive care units and related deaths during the 2009–10 pandemic and the 2010–11 postpandemic influenza seasons. We identified 156 eligible patients: 112 in 2009–10 and 44 in 2010–11. Although a shift to younger patients occurred in 2010–11 (median age 3.2 vs. 5.3 years), infants <1 year of age remained the most affected. Underlying immunosuppression was a risk factor for hospital-acquired infections (p = 0.013), which accounted for 14% of cases. Myocarditis was predictive of death (p = 0.006). Of the 156 case-patients, 17% died; the difference between seasons was not significant (p = 0.473). Our findings stress the challenge of preventing severe postpandemic influenza infection in children and the need to prevent nosocomial transmission of influenza virus, especially in immunosuppressed children.
first_indexed 2024-12-17T07:21:13Z
format Article
id doaj.art-440d77d6951e4babb63979f750605f86
institution Directory Open Access Journal
issn 1080-6040
1080-6059
language English
last_indexed 2024-12-17T07:21:13Z
publishDate 2012-11-01
publisher Centers for Disease Control and Prevention
record_format Article
series Emerging Infectious Diseases
spelling doaj.art-440d77d6951e4babb63979f750605f862022-12-21T21:58:46ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592012-11-0118111755176210.3201/eid1811.120719Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic SeasonMathias AltmannLena FiebigSilke BudaRüdiger von KriesManuel DehnertWalter HaasWe conducted a nationwide hospital-based prospective study in Germany of influenza A(H1N1)pdm09 cases among children <15 years of age admitted to pediatric intensive care units and related deaths during the 2009–10 pandemic and the 2010–11 postpandemic influenza seasons. We identified 156 eligible patients: 112 in 2009–10 and 44 in 2010–11. Although a shift to younger patients occurred in 2010–11 (median age 3.2 vs. 5.3 years), infants <1 year of age remained the most affected. Underlying immunosuppression was a risk factor for hospital-acquired infections (p = 0.013), which accounted for 14% of cases. Myocarditis was predictive of death (p = 0.006). Of the 156 case-patients, 17% died; the difference between seasons was not significant (p = 0.473). Our findings stress the challenge of preventing severe postpandemic influenza infection in children and the need to prevent nosocomial transmission of influenza virus, especially in immunosuppressed children.https://wwwnc.cdc.gov/eid/article/18/11/12-0719_articleinfluenza A(H1N1)pdm09 virusinfluenzachildrencritically illpostpandemichospital-acquired infection
spellingShingle Mathias Altmann
Lena Fiebig
Silke Buda
Rüdiger von Kries
Manuel Dehnert
Walter Haas
Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
Emerging Infectious Diseases
influenza A(H1N1)pdm09 virus
influenza
children
critically ill
postpandemic
hospital-acquired infection
title Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
title_full Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
title_fullStr Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
title_full_unstemmed Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
title_short Unchanged Severity of Influenza A(H1N1)pdm09 Infection in Children during First Postpandemic Season
title_sort unchanged severity of influenza a h1n1 pdm09 infection in children during first postpandemic season
topic influenza A(H1N1)pdm09 virus
influenza
children
critically ill
postpandemic
hospital-acquired infection
url https://wwwnc.cdc.gov/eid/article/18/11/12-0719_article
work_keys_str_mv AT mathiasaltmann unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason
AT lenafiebig unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason
AT silkebuda unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason
AT rudigervonkries unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason
AT manueldehnert unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason
AT walterhaas unchangedseverityofinfluenzaah1n1pdm09infectioninchildrenduringfirstpostpandemicseason