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Washington 2011-2012 Flu Season: Weeks 40-20 (Two New Deaths; Total 16)

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  • #16
    Re: Washington 2011-2012 Flu Season: Weeks 40-3 (No New Death; Total One)

    Week 3:
    No new deaths; total 1 (NOTE: Last week's report was confusing, but only one death has occurred according to this week's report)
    5 hospitalizations have been reported for the season (2 adult; 3 children)

    Influenza activity remained low in Washington during week 3 (1/15/121/21/12).
    During week 3, 13 (5.2%) of 248 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. During the past four weeks, 79% of positive specimens have been influenza A viruses. Almost all subtyped influenza A specimens were influenza A H3 viruses.
    The proportion of outpatient and emergency room visits for influenza-like illness (ILI) remained low.
    http://www.doh.wa.gov/notify/nc/influenza.htm

    Comment


    • #17
      Re: Washington 2011-2012 Flu Season: Weeks 40-4 (No New Deaths; Total One)

      Week 4: Low
      No new deaths; total 1
      ILI: 1.13%
      ED ILI: ~0.5%
      2.3% positive for A/H3 and B
      http://www.doh.wa.gov/notify/nc/influenza.htm

      Seattle and King County Report is a comparison report from last season to this:
      http://www.kingcounty.gov/healthserv...uactivity.aspx

      Comment


      • #18
        Re: Washington 2011-2012 Flu Season: Weeks 40-5 (One New Death; Total Two)

        Week 5: Sporadic
        1 new death (occurring in week 4, age 5-24); total 2

        • Influenza activity increased slightly in Washington during week 5 (1/29/12–2/4/12).
        • During week 5, 12 (5.2&#37 of 233 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. During the past four weeks, 79% of positive specimens have been influenza A viruses. Almost all subtyped influenza A specimens were influenza A H3 viruses.
        • The proportion of outpatient visits for influenza-like illness (ILI) increased to above baseline, while emergency room visits for influenza-like illness (ILI) remained low.
        http://www.doh.wa.gov/notify/nc/influenza.htm

        Comment


        • #19
          Re: Washington 2011-2012 Flu Season: Weeks 40-6 (No New Deaths; Total Two)

          Week 6:
          No new deaths; total 2
          Influenza activity increased in Washington during week 6 (2/5/122/11/12) but remained fairly low overall.
          ILI: 1.9%
          5.4% positive for influenza
          http://www.doh.wa.gov/notify/nc/influenza.htm

          Comment


          • #20
            Re: Washington 2011-2012 Flu Season: Weeks 40-7 (No New Deaths; Total Two)

            Week 7:
            No new deaths; total 2
            Influenza activity continued to slowly increase in Washington during week 7 (2/12/12–2/18/12).

            During week 7, 22 (7.3&#37 of 302 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. During the past four weeks, 81% of positive specimens have been influenza A viruses. Almost all subtyped influenza A specimens were influenza A H3 viruses.

            Both the proportion of outpatient visits for influenza-like illness (ILI) and emergency room visits for influenza-like illness (ILI) remained below baseline.
            http://www.doh.wa.gov/notify/nc/influenza.htm

            Comment


            • #21
              Re: Washington 2011-2012 Flu Season: Weeks 40-8 (No New Deaths; Total Two)

              Week 8:
              No new deaths; total 2
              Influenza activity continued to increase but overall remained low during week 8 (2/19/122/25/12).
              During week 8, 31 (11.6%) of 268 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. During the past four weeks, 78% of positive specimens have been influenza A viruses. Of the subtyped influenza A specimens, 69% were influenza A H3 viruses. There has been an increase in detection of influenza A (2009 H1N1) viruses over the past 2 weeks.
              Both the proportion of outpatient visits for influenza-like illness (ILI) and emergency room visits for influenza-like illness remained below baseline.
              http://www.doh.wa.gov/notify/nc/influenza.htm

              Comment


              • #22
                Re: Washington 2011-2012 Flu Season: Weeks 40-9 (No New Deaths; Total Two)

                Week 9: Overall, influenza activity increased slightly
                No new deaths; total 2

                ILI: 2.2%
                13.9% for influenza
                P&I: 8.4%
                http://www.doh.wa.gov/notify/nc/influenza.htm

                Comment


                • #23
                  Re: Washington 2011-2012 Flu Season: Weeks 40-10 (One New Death; Total Three)

                  Week 10: Regional
                  1 new death (age 25-49); total 3

                  ILI: 2.2%
                  15.5% for influenza
                  P&I deaths: 6.1%

                  Influenza activity continued to increase in Western Washington and may be at its peak in Eastern Washington.
                  • The proportion of outpatient and emergency room visits for influenza-like illness (ILI) remained below the baseline in both Western and Eastern Washington.
                  http://www.doh.wa.gov/notify/nc/influenza.htm

                  Comment


                  • #24
                    Re: Washington 2011-2012 Flu Season: Weeks 40-11 (Four Deaths Reported; Total Seven)

                    Week 11: Widespread (Influenza activity continues to increase in Western Washington and appears to have peaked in Eastern Washington.)
                    4 new deaths (1 age 25-49, 1 age 50-64, 2 ages 65+); total 7

                    Spokane Regional Health District requires that their hospitals and providers report patients hospitalized with laboratory-confirmed influenza. Since July 24, 2011, 62 adults and 11 children hospitalized with laboratory-confirmed influenza have been reported among Spokane County residents.

                    ILI: 4.1%
                    17.9% for influenza
                    P&I deaths: 10.6%
                    http://www.doh.wa.gov/notify/nc/influenza.htm

                    Comment


                    • #25
                      Re: Washington 2011-2012 Flu Season: Weeks 40-12 (No New Deaths; Total Seven)

                      Week 12: Widespread
                      No new deaths; total 7

                      Influenza viruses continued to circulate widely throughout Washington during week 12.
                      • Testing data from sentinel laboratories suggested that influenza activity is at peak levels in Eastern Washington and reaching peak levels in Western Washington.
                      • The proportions of outpatient and emergency room visits for influenza-like illness (ILI) were just below the baseline.
                      • 20.7% positive for influenza
                      P&I deaths: 8.2%

                      Since July 24, 2011, 69 adults and 17 children hospitalized with laboratory-confirmed influenza have been reported among Spokane County residents.
                      http://www.doh.wa.gov/notify/nc/influenza.htm

                      Comment


                      • #26
                        Re: Washington 2011-2012 Flu Season: Weeks 40-13 (No New Deaths; Total Seven)

                        Week 13: Widespread
                        No new deaths; total 7

                        ILI: 1.2%
                        29.9% positive for influenza
                        http://www.doh.wa.gov/notify/nc/influenza.htm

                        Comment


                        • #27
                          Re: Washington 2011-2012 Flu Season: Weeks 40-14 (Two New Deaths Reported; Total Nine)

                          Week 14:
                          2 new deaths reported (age 25-49 and 50-64); total 9

                          • In Western Washington, the proportion of emergency room visits for ILI was elevated and continued to increase
                          Data from sentinel laboratories in Western Washington showed influenza B detections continued to increase
                          while influenza A detections decreased.
                          • In Eastern Washington, the proportion of emergency room visits for ILI was below baseline and continued to
                          decrease.

                          ILI: 2.2%
                          26.7% positive for influenza
                          P&I deaths: 8.9%
                          http://www.doh.wa.gov/notify/nc/influenza.htm

                          Comment


                          • #28
                            Re: Washington 2011-2012 Flu Season: Weeks 40-15 (One New Death; Total 10)

                            Week 15: Regional
                            1 new death (age 65+); total 10

                            • In Western Washington, the proportion of emergency room visits for ILI remained elevated but was lower than peak levels observed during recent seasons (excluding the pandemic). Of specimens tested at sentinel laboratories in Western Washington, 34% were positive for influenza. Detections of both influenza A and influenza B viruses through these laboratories increased during week 15.
                            • In Eastern Washington, the proportion of emergency room visits for ILI was below baseline and detections of influenza viruses through sentinel laboratories continued to slowly decrease.

                            ILI: 3%
                            29.3% positive for influenza
                            http://www.doh.wa.gov/notify/nc/influenza.htm

                            Comment


                            • #29
                              Re: Washington 2011-2012 Flu Season: Weeks 40-16 (No New Deaths; Total 10)

                              Week 16:
                              No new deaths; total 10
                              ILI: 2.6%

                              Influenza activity was low in Eastern Washington but continued to be elevated in Western Washington.
                              The proportion of emergency room visits for ILI was below baseline in Eastern Washington and just above the baseline in Western Washington.
                              During week 16, 138 (33%) of 421 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. Of these specimens, 84 (61%) were influenza B viruses and 54 (39%) were influenza A virus.
                              http://www.doh.wa.gov/notify/nc/influenza.htm

                              Comment


                              • #30
                                Re: Washington 2011-2012 Flu Season: Weeks 40-17 (Three New Deaths; Total 13)

                                Week 17: Local
                                3 new deaths (ages 65+); total 13
                                ILI: 1.9%
                                P&I deaths: 7.8%

                                Influenza viruses continued to circulate in Washington during week 17, though at a lower level than in previous weeks.
                                Influenza activity appears to be decreasing in both Eastern and Western Washington.
                                The proportion of emergency room visits for ILI was below baseline.
                                During week 17, 87 (21.2%) of 411 specimens tested by the World Health Organization (WHO) Collaborating Laboratories in Washington were positive for influenza. Of these specimens, 61 (70%) were influenza B virusesand 26 (30%) were influenza A viruses.

                                Spokane Regional Health District requires that their hospitals and providers report patients hospitalized with laboratory-confirmed influenza. Since July 24, 2011, 91 adults and 21 children hospitalized with laboratory-confirmed influenza have been reported among Spokane County residents.
                                http://www.doh.wa.gov/notify/nc/influenza.htm

                                Comment

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