Influenza Activity - Previous Years

Archive of influenza statistics.

On this page:
2012-2013
2011-2012
2010-2011
2009-2010
2008-2009
2007-2008
2006-2007
2005-2006
2004-2005
2003-2004

2012-2013

  • Weekly Influenza and Respiratory Activity: Statistics Summary 2012-13 (PDF: 639KB/8 pages)
    MDH uses several systems during influenza season to estimate the level of influenza activity among Minnesotans. Data reported in this slide set include cases and deaths from October 2012 through May 2013. Data were obtained from the following sources:
    • Case reporting of patients hospitalized with laboratory-confirmed influenza
    • Investigation of deaths related to influenza identified through hospital surveillance, Unexplained Deaths and Medical Examiner Infectious Deaths surveillance programs, death certificate review, and nursing home outbreaks.
    • Influenza and respiratory virus testing on a subset of patients from providers participating in the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet)
    • School ILI outbreak reporting
    • Influenza in long-term care facility (LTCF) surveillance
    • MN Lab System (MLS) Laboratory Weekly Influenza Surveillance Program [over 100 clinic-and hospital-based laboratories submit data on rapid test results for Influenza and Respiratory Syncytial Virus (RSV), eight of these laboratories also report confirmatory culture testing]
    • Tracking of doctor's office visits for influenza-like illness (ILI) providers participating in ILINet

2011-2012

  • Weekly Influenza and Respiratory Activity: Statistics Summary 2011-12 (PDF: 662KB/8 pages)
    MDH uses several systems during influenza season to estimate the level of influenza activity among Minnesotans. Data reported in this slide set include cases and deaths from October 2011 through May 2012. Data were obtained from the following sources:
    • Case reporting of patients hospitalized with laboratory-confirmed influenza
    • Investigation of deaths related to influenza identified through hospital surveillance, Unexplained Deaths and Medical Examiner Infectious Deaths surveillance programs, death certificate review, and nursing home outbreaks.
    • Influenza and respiratory virus testing on a subset of patients from providers participating in the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet)
    • School ILI outbreak reporting
    • Influenza in long-term care facility (LTCF) surveillance
    • MN Lab System (MLS) Laboratory Weekly Influenza Surveillance Program [over 100 clinic-and hospital-based laboratories submit data on rapid test results for Influenza and Respiratory Syncytial Virus (RSV), eight of these laboratories also report confirmatory culture testing]
    • Tracking of doctor's office visits for influenza-like illness (ILI) providers participating in ILINet

2010-2011

  • Weekly Influenza Activity: Statistics Summary 2010-11 (PDF: 1.08MB/8 pages)
    MDH uses several systems during influenza season to estimate the level of influenza activity among Minnesotans. Data reported in this slide set include cases and deaths from October 2010 through May 2011. Data were obtained from the following sources:
    • Case reporting of patients hospitalized with laboratory-confirmed influenza
    • Investigation of deaths related to influenza identified through hospital surveillance, Unexplained Deaths and Medical Examiner Infectious Deaths surveillance programs, death certificate review, and nursing home outbreaks.
    • Influenza and respiratory virus testing on a subset of patients from providers participating in the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet)
    • School ILI outbreak reporting
    • Influenza in long-term care facility (LTCF) surveillance
    • MN Lab System (MLS) Laboratory Weekly Influenza Surveillance Program [over 100 clinic-and hospital-based laboratories submit data on rapid test results for Influenza and Respiratory Syncytial Virus (RSV), eight of these laboratories also report confirmatory culture testing]
    • Tracking of doctor's office visits for influenza-like illness (ILI) providers participating in ILINet

2009-2010

  • 2009 H1N1 Influenza in Minnesota Epidemiology (PDF: 207KB/38 pages) (PPT: 767KB/38 slides)
    MDH uses several systems during influenza season to estimate the level of influenza activity among Minnesotans. At the end of the 2008-2009 influenza season (April 2009) some surveillance activities were continued, and in several cases, expanded in order to track 2009 H1N1 influenza through April 2010. 
    Data reported in this slide set include cases and deaths from April 2009 through April 2010. Data were obtained from the following sources:
    • Case reporting of patients hospitalized with laboratory-confirmed influenza
    • Tracking of doctor's office visits for influenza-like illness (ILI) by 28 Influenza Sentinel Surveillance Program sites
    • School ILI outbreak reporting
    • MN Lab System (MLS) Laboratory Influenza Surveillance Program (over 100 clinic-and hospital-based laboratories submit data on rapid test results for Influenza and Respiratory Syncytial Virus (RSV), eight of these laboratories also report confirmatory culture testing)
    • Investigation of deaths related to influenza through the Unexplained Deaths and Medical Examiner Infectious Deaths Surveillance Programs

2008-2009

2007-2008

2006-2007

2005-2006

2004-2005

2003-2004

  • 2003-2004 Totals (Excel: 45KB/3 sheets)
  • MDH lab totals: 919 samples tested
    • 99% A-Panama-like (H3): 911 isolates have been identified as A-Panama-like (H3), which is well matched to this year's vaccine.
    • 1% Other : Five isolates were identified as Influenza A, one isolate was identified as A/New Caldonia-like H1, one as Influenza B, and one as B/Hong-Kong-like.
  • Vaccine: A/New Caledonia/20/99 (H1N1); A/Panama/2007/99 (H3N2), and B/Hong Kong/330/2001-like virus.

Updated Monday, 23-Jun-2014 12:15:18 CDT