Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA

Colorado became the first state to make laboratory-confirmed influenza-associated hospitalizations a case-based reportable condition in 2004. We summarized surveillance for influenza hospitalizations in Colorado during the first 4 recorded influenza seasons (2004–2008). We highlight the similarities...

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Main Authors: Rosemary Proff, Ken Gershman, Dennis Lezotte, Ann-Christine Nyquist
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2009-06-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/15/6/08-1645_article
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author Rosemary Proff
Ken Gershman
Dennis Lezotte
Ann-Christine Nyquist
author_facet Rosemary Proff
Ken Gershman
Dennis Lezotte
Ann-Christine Nyquist
author_sort Rosemary Proff
collection DOAJ
description Colorado became the first state to make laboratory-confirmed influenza-associated hospitalizations a case-based reportable condition in 2004. We summarized surveillance for influenza hospitalizations in Colorado during the first 4 recorded influenza seasons (2004–2008). We highlight the similarities and differences among influenza seasons; no 2 seasons were entirely the same. The 2005–06 influenza season had 2 distinct waves of activity (types A and B), the 2006–07 season was substantially later and milder, and 2007–08 had substantially greater influenza B activity. The case-based surveillance for influenza hospitalizations provides information regarding the time course of seasonal influenza activity, reported case numbers and population-based rates by age group and influenza virus type, and a measure of relative severity. Influenza hospitalization surveillance provides more information about seasonal influenza activity than any other surveillance measure (e.g., surveillance for influenza-like illness) currently in widespread use among states. More states should consider implementing case-based surveillance for influenza hospitalizations.
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spelling doaj.art-08c46ad9e2054bfbbb3fa0af217bc25a2022-12-22T03:15:43ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592009-06-0115689289810.3201/eid1506.081645Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USARosemary ProffKen GershmanDennis LezotteAnn-Christine NyquistColorado became the first state to make laboratory-confirmed influenza-associated hospitalizations a case-based reportable condition in 2004. We summarized surveillance for influenza hospitalizations in Colorado during the first 4 recorded influenza seasons (2004–2008). We highlight the similarities and differences among influenza seasons; no 2 seasons were entirely the same. The 2005–06 influenza season had 2 distinct waves of activity (types A and B), the 2006–07 season was substantially later and milder, and 2007–08 had substantially greater influenza B activity. The case-based surveillance for influenza hospitalizations provides information regarding the time course of seasonal influenza activity, reported case numbers and population-based rates by age group and influenza virus type, and a measure of relative severity. Influenza hospitalization surveillance provides more information about seasonal influenza activity than any other surveillance measure (e.g., surveillance for influenza-like illness) currently in widespread use among states. More states should consider implementing case-based surveillance for influenza hospitalizations.https://wwwnc.cdc.gov/eid/article/15/6/08-1645_articleInfluenzasurveillancehospitalizationColoradovirusesresearch
spellingShingle Rosemary Proff
Ken Gershman
Dennis Lezotte
Ann-Christine Nyquist
Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
Emerging Infectious Diseases
Influenza
surveillance
hospitalization
Colorado
viruses
research
title Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
title_full Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
title_fullStr Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
title_full_unstemmed Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
title_short Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
title_sort case based surveillance of influenza hospitalizations during 2004 2008 colorado usa
topic Influenza
surveillance
hospitalization
Colorado
viruses
research
url https://wwwnc.cdc.gov/eid/article/15/6/08-1645_article
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AT kengershman casebasedsurveillanceofinfluenzahospitalizationsduring20042008coloradousa
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AT annchristinenyquist casebasedsurveillanceofinfluenzahospitalizationsduring20042008coloradousa