Case-based Surveillance of Influenza Hospitalizations during 2004–2008, Colorado, USA
Open Access
- 1 June 2009
- journal article
- Published by Centers for Disease Control and Prevention (CDC) in Emerging Infectious Diseases
- Vol. 15 (6), 892-898
- https://doi.org/10.3201/eid1506.081645
Abstract
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.Keywords
This publication has 17 references indexed in Scilit:
- Induction of Heterosubtypic Immunity to Influenza Virus by Intranasal ImmunizationJournal of Virology, 2008
- Creating a Model Program for Influenza Surveillance in California: Results from the 2005–2006 Influenza SeasonAmerican Journal of Preventive Medicine, 2007
- Heterosubtypic Immunity to Influenza A Virus Infection Requires a Properly Diversified Antibody RepertoireJournal of Virology, 2007
- Performance of six influenza rapid tests in detecting human influenza in clinical specimensJournal of Clinical Virology, 2007
- Accuracy and Interpretation of Rapid Influenza Tests in ChildrenPEDIATRICS, 2007
- Multistate Surveillance for Laboratory-Confirmed, Influenza-Associated Hospitalizations in ChildrenThe Pediatric Infectious Disease Journal, 2006
- Influenza-Associated Hospitalizations in the United StatesJama-Journal Of The American Medical Association, 2004
- Comparison of the Directigen Flu A+B Test, the QuickVue Influenza Test, and Clinical Case Definition to Viral Culture and Reverse Transcription-PCR for Rapid Diagnosis of Influenza Virus InfectionJournal of Clinical Microbiology, 2003
- Utilization of case definitions and laboratory reporting in the surveillance of notifiable communicable diseases in the United States.American Journal of Public Health, 1985
- Comparison of an Active and Passive Surveillance System of Primary Care Providers for Hepatitis, Measles, Rubella, and Salmonellosis in VermontAmerican Journal of Public Health, 1983