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California 2012-13 Season: Weeks 46-36 (One Pediatric Death Reported; Total 14)

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  • California 2012-13 Season: Weeks 46-36 (One Pediatric Death Reported; Total 14)

    Weeks 46, 47: Sporadic
    ILI: 1.3%, 1.1%, respectively (well below baseline)
    2.5% positive for influenza; majority A
    P&I hospitalizations at baseline
    CDPH has received no reports of laboratory-confirmed influenza-associated deaths among persons less than 65 years of age to date.
    No cases of novel influenza have been detected in California to date.

  • #2
    Re: California 2012-13 Season: Weeks 46-48 (One Death Reported)

    Week 48: Sporadic
    1 death reported (adult between the ages of 40-49 years from central California who had multiple co-morbid conditions. The patient tested positive for influenza A by rapid test.)

    Outpatient influenza-like illness (ILI) decreased 0.8% in Week 48 (0.7%) compared to Week 47 (1.5%).
    2.2% positive for influenza
    CDPH has received no reports of laboratory-confirmed influenza outbreaks during the 2012–2013 influenza season.

    Comment


    • #3
      Re: California 2012-13 Season: Weeks 46-49

      Weeks 49: Sporadic
      No new death; total 1

      ILI: 2.8%
      3.7% positive for influenza; majority A(H3)
      P&I hospitalizations: 4.6%
      No outbreaks have been reported for the season.

      Comment


      • #4
        Re: California 2012-13 Season: Weeks 46-50

        Weeks 50: Sporadic
        No new death; total 1

        ILI: Week 50 (2.8&#37 compared to Week 49 (2.5%). Baseline: 3%
        3.3% positive for influenza; majority A
        P&I hospitalizations: 4.2%
        No outbreaks have been reported for the season.

        Comment


        • #5
          Re: California 2012-13 Season: Weeks 46-52 (One New Death; Total Two)

          Weeks 51, 52: Sporadic

          Outpatient influenza-like illness (ILI) increased 0.5% in Week 52 (1.8%) compared to Week 51 (1.3%).
          Of 3695 specimens tested during Week 51 and Week 52, (7.9%) were positive for influenza virus. The percentage of influenza detections in the RLN and sentinel laboratories increased in Weeks 51 (5.8%) and 52 (10.0%).

          The Centers for Disease Control and Prevention (CDC) has not strain-typed any California specimens to date.
          One influenza-associated death in an adult less than 65 years of age was reported during Week 52.
          No cases of novel influenza have been detected in California to date.

          The percentage of hospitalizations for pneumonia and influenza (P&I) in Kaiser Permanente facilities in northern California increased during Week 51 (4.7%) and again during Week 52 (6.2%), compared to Week 50 (4.2%). The percentage increased to above baseline during Week 52.

          Comment


          • #6
            Re: California 2012-13 Season: Weeks 46-1 (Two New Deaths; Total Four)

            Week 1: Regional
            2 new deaths; total 4

            ILI: 5.4%, compared to Week 52 (4.9%).
            The percentage of hospitalizations for pneumonia and influenza (P&I) in Kaiser Permanente facilities in northern California increased during Week 1 (7.5%), compared to Week 52 (6.1%). The percentage increased to above the epidemic threshold (6.9%) during Week 1.

            14.6%positive for influenza; majority A

            The California Department of Public Health Viral and Rickettsial Disease Laboratory (CDPH-VRDL) has tested 12 influenza isolates for antiviral resistance to date; none have been resistant to neuraminidase inhibitors.
            The Centers for Disease Control and Prevention (CDC) has not strain-typed any California specimens to date.

            Two influenza-associated deaths in adults less than 65 years of age were reported during Week 1.
            No cases of novel influenza have been detected in California to date.
            No outbreaks reported.

            Comment


            • #7
              Re: California 2012-13 Season: Weeks 46-2 (One New Death; Total Five)

              Week 2: Widespread
              1 new death; total 5 CDPH received one report of an influenza-associated death in an adult less than 65 years of age during Week 2. A total of five influenza-associated deaths among adults less than 65 years of age have been reported to CDPH to date during the 2012?2013 influenza season. The deaths were reported from the Sacramento metropolitan area (1), the Visalia-Porterville Metropolitan Area in the Central Valley (1), the Inland Empire (1), and the Greater Los Angeles Area (2).

              ILI: 5.4%, compared to Week 1 (5.3%)
              21.7% positive for influenza; majority A

              The percentage of hospitalizations for pneumonia and influenza (P&I) in Kaiser Permanente facilities in northern California decreased during Week 2 (7.0%), compared to Week 1 (7.5%). The percentage remained at the epidemic threshold (7.0%) during Week 2.

              CDPH received three reports of laboratory-confirmed influenza outbreaks during Week 2. All three outbreaks occurred in congregate living facilities and were associated with influenza A. Subtyping performed on specimens from one of the three outbreaks identified influenza A (H3); total 3 outbreaks.

              Comment


              • #8
                Re: California 2012-13 Season: Weeks 46-3 (Five New Adult Deaths; Total Nine)

                Week 3: Widespread
                5 new adult deaths; total 9 (CDPH received five reports of influenza-associated deaths in adults less than 65 years of age during Week 3. The deaths were reported from the Metropolitan Fresno area, the Greater Los Angeles area, and the San Diego metropolitan area, with deaths occurring from January 2, 2013 to January 15, 2013.) Of note, one death previously reported from Inland Empire is now under further investigation by the local health jurisdiction and was removed from the final cumulative tally.

                ILI: 4.9% (last week 4.8%) This is above epidemic threshold
                Hospitalizations for P&I: 6.8% (last week 6.8%) This is below epidemic threshold

                30.3% positive for influenza; majority A(H3)
                Three California specimens have been strain-typed to date during the 2012–2013 influenza season; all matched with components of the 2012–2013 vaccine for the Northern Hemisphere.

                8 new outbreaks reported; total 11 (all influenza A)

                Comment


                • #9
                  Re: California 2012-13 Season: Weeks 46-4 (One Pediatric and Four Adult Deaths; Total 14)

                  Week 4: Widespread
                  1 pediatric (5-9 years of age) and 4 adult (under age 65) deaths; total 14

                  ILI: 6.2%
                  37.6% positive for influenza; majority A/H3
                  P&I hospitalizations: 8.8%
                  CDPH received 13 reports of laboratory-confirmed influenza outbreaks during Week 4; total 29.

                  Comment


                  • #10
                    Re: California 2012-13 Season: Weeks 46-5 (Four New Adult Deaths; Total 18)

                    Week 5: Widespread
                    4 adult (under age 65) deaths; total 18 (one of which was a pediatric death)

                    42.9% positive for influenza; majority A/H3
                    P&I hospitalizations: 8.1%
                    CDPH received 25 reports of laboratory-confirmed outbreaks during Week 5; total 51.

                    Comment


                    • #11
                      Re: California 2012-13 Season: Weeks 46-6 (Eight New Adult Deaths; Total 26)

                      Week 6: Widespread
                      8 new adult (under age 65) deaths; total 26 (one of which was a pediatric death)

                      ILI: 4.1% (note that one of our largest provider networks has not yet reported data for Week 6 and the results may change.)

                      33.7% positive for influenza; majority A/H3
                      P&I hospitalizations: 3.1%
                      CDPH received 17 reports of laboratory-confirmed outbreaks during Week 6; total 69.

                      Comment


                      • #12
                        Re: California 2012-13 Season: Weeks 46-7 (Five New Adult Deaths; Total 32)

                        Week 7: Widespread
                        5 new adult (under age 65) deaths; total 32 (one of which was a pediatric death)

                        ILI: 3.9%
                        26.7% positive for influenza; majority A
                        P&I hospitalizations: 7.5%
                        CDPH received 13 reports of laboratory-confirmed outbreaks during Week 7; total 84.

                        Comment


                        • #13
                          Re: California 2012-13 Season: Weeks 46-8 (One New Pediatric and One New Adult Death; Total 34)

                          Week 8: Regional
                          1 new pediatric (age 10-14) and 1 new adult (under age 65) death; total 34 (two of which were pediatric)

                          ILI: 4.3%
                          26.6% positive for influenza; majority A
                          P&I hospitalizations: 7%
                          CDPH received 11 reports of laboratory-confirmed outbreaks during Week 8; total 98.

                          Comment


                          • #14
                            Re: California 2012-13 Season: Weeks 46-9 (Nine New Adult Deaths; Total 43)

                            Week 9: Regional
                            9 new adult (under age 65) deaths; total 43 (two of which were pediatric)

                            ILI: 3.5%
                            25% positive for influenza; majority A
                            P&I hospitalizations: 7.1%
                            CDPH received 12 reports of laboratory-confirmed outbreaks during Week 9; total 112.

                            Comment


                            • #15
                              Re: California 2012-13 Season: Weeks 46-10 (One Pediatric and Three New Adult Deaths; Total 47)

                              Week 10: Regional
                              1 new pediatric and 3 new adult (under age 65) deaths; total 47 (three of which were pediatric)

                              ILI: 3.6%
                              27% positive for influenza; majority A
                              P&I hospitalizations: 5.5%
                              CDPH received 5 reports of laboratory-confirmed outbreaks during Week 10; total 117.

                              Comment

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