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  • #16
    Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 7

    Ontario Respiratory Virus Bulletin, 2012-2013 (Week 8: February 17, 2013 ? February 23, 2013)

    Summary of current and season-to-date respiratory virus activity

    ? Seasonal influenza activity for the dominant circulating subtype, influenza A/H3N2, continues to decline. The proportion of respiratory samples testing positive for influenza is now at 11.2%, compared to the seasonal peak of 33.4% in the last week of 2012.*

    o The majority of influenza cases this season (97.1%; 8,171/8,411) were influenza A infections (Table 1). The dominant circulating influenza A subtype is H3N2, representing 93.9% of all subtyped influenza A positive specimens.*

    o In the season to date, 940 confirmed institutional respiratory infection outbreaks have been reported, 527 (56.1%) of which were laboratory confirmed as influenza A (Table 4).

    o A total of 2,673 hospitalizations and 210 deaths have been reported among lab confirmed influenza cases in the current surveillance season to February 23 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (97.3% and 98.1%, respectively).

    ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

    o At the beginning of the season, entero/rhinovirus was the causative organism of most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism of institutional outbreaks, although the number of newly reported influenza A outbreaks has declined (Table 4, Figure 5).

    o Currently, respiratory syncytial virus has the highest percent positivity (16.8%) and influenza A has the second highest percent positivity (8.4%) of all circulating respiratory viruses. The percent positivity for influenza B has increased slightly in recent weeks and is now at 2.8% for the current reporting week. For the season to date, influenza A has had the highest percent positivity overall, followed by entero/rhinovirus (Table 3).*
    ...
    Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 8 and cumulative (rates, and numbers in brackets) for the 2012-2013 season


    <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=550><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

    </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

    </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

    </TD><TD height=16 vAlign=top width="20%">Number of Deaths

    </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

    </TD></TR><TR><TD height=9 vAlign=top width="20%"><1

    </TD><TD height=9 vAlign=top width="20%">14 (151)

    </TD><TD height=9 vAlign=top width="20%">106.65

    </TD><TD height=9 vAlign=top width="20%">0 (2)

    </TD><TD height=9 vAlign=top width="20%">1.41

    </TD></TR><TR><TD height=9 vAlign=top width="20%">1-4

    </TD><TD height=9 vAlign=top width="20%">11 (194)

    </TD><TD height=9 vAlign=top width="20%">34.03

    </TD><TD height=9 vAlign=top width="20%">0 (3)

    </TD><TD height=9 vAlign=top width="20%">0.53

    </TD></TR><TR><TD height=9 vAlign=top width="20%">5-14

    </TD><TD height=9 vAlign=top width="20%">12 (82)

    </TD><TD height=9 vAlign=top width="20%">5.49

    </TD><TD height=9 vAlign=top width="20%">0 (0)

    </TD><TD height=9 vAlign=top width="20%">0.00

    </TD></TR><TR><TD height=9 vAlign=top width="20%">15-24

    </TD><TD height=9 vAlign=top width="20%">2 (56)

    </TD><TD height=9 vAlign=top width="20%">3.10

    </TD><TD height=9 vAlign=top width="20%">0 (0)

    </TD><TD height=9 vAlign=top width="20%">0.00

    </TD></TR><TR><TD height=9 vAlign=top width="20%">25-44

    </TD><TD height=9 vAlign=top width="20%">18 (183)

    </TD><TD height=9 vAlign=top width="20%">4.98

    </TD><TD height=9 vAlign=top width="20%">1 (7)

    </TD><TD height=9 vAlign=top width="20%">0.19

    </TD></TR><TR><TD height=9 vAlign=top width="20%">45-64

    </TD><TD height=9 vAlign=top width="20%">32 (418)

    </TD><TD height=9 vAlign=top width="20%">11.33

    </TD><TD height=9 vAlign=top width="20%">1 (22)

    </TD><TD height=9 vAlign=top width="20%">0.60

    </TD></TR><TR><TD height=9 vAlign=top width="20%">65+

    </TD><TD height=9 vAlign=top width="20%">80 (1,586)

    </TD><TD height=9 vAlign=top width="20%">86.48

    </TD><TD height=9 vAlign=top width="20%">11 (176)

    </TD><TD height=9 vAlign=top width="20%">9.60

    </TD></TR><TR><TD height=9 vAlign=top width="20%">Unknown

    </TD><TD height=9 vAlign=top width="20%">1 (3)

    </TD><TD height=9 vAlign=top width="20%">-

    </TD><TD height=9 vAlign=top width="20%">0 (0)

    </TD><TD height=9 vAlign=top width="20%">-

    </TD></TR><TR><TD height=9 vAlign=top width="20%">Total

    </TD><TD height=9 vAlign=top width="20%">170 (2,673)

    </TD><TD height=9 vAlign=top width="20%">20.23

    </TD><TD height=9 vAlign=top width="20%">13 (210)

    </TD><TD height=9 vAlign=top width="20%">1.59

    </TD></TR></TBODY></TABLE>

    ...
    Full report:
    http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%208.pdf
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

    Comment

    • #17
      Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 9

      Ontario Respiratory Virus Bulletin, 2012-2013 (Week 9: February 24, 2013 ? March 2, 2013)

      Summary of current and season-to-date respiratory virus activity

      ? Seasonal influenza activity for the dominant circulating subtype, influenza A/H3N2, continues to decline. The proportion of respiratory samples testing positive for influenza is now at 11.1%, compared to the seasonal peak of 33.4% in the last week of 2012.*

      o The majority of influenza cases this season (96.5%; 8,308/8,606) were influenza A infections (Table 1). The dominant circulating influenza A subtype is H3N2, representing 93.5% of all subtyped influenza A positive specimens.*

      o In the season to date, 970 confirmed institutional respiratory infection outbreaks have been reported, 543 (56.0%) of which were laboratory confirmed as influenza A (Table 4).

      o A total of 2,751 hospitalizations and 221 deaths have been reported among lab confirmed influenza cases in the current surveillance season to March 2 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (96.9% and 97.7%, respectively).

      ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

      o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism of institutional outbreaks, although overall, the number of newly reported influenza A outbreaks has declined (Table 4, Figure 5).

      o Currently, respiratory syncytial virus has the highest percent positivity (15.0%) among all circulating respiratory viruses in week 9, representing a decrease from the previous week (16.8%). Influenza A has the second highest percent positivity (7.7%), and the percent positivity for influenza B has continued to increase slightly to 3.4% for the current reporting week. For the season to date, influenza A has had the highest percent positivity overall, followed by entero/rhinovirus (Table 3).*
      ...

      Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 9 and cumulative (rates, and numbers in brackets) for the 2012-2013 season


      <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=571><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

      </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

      </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

      </TD><TD height=16 vAlign=top width="20%">Number of Deaths

      </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

      </TD></TR><TR><TD height=9 vAlign=top width="20%"><1

      </TD><TD height=9 vAlign=top width="20%">6 (157)

      </TD><TD height=9 vAlign=top width="20%">110.89

      </TD><TD height=9 vAlign=top width="20%">0 (2)

      </TD><TD height=9 vAlign=top width="20%">1.41

      </TD></TR><TR><TD height=9 vAlign=top width="20%">1-4

      </TD><TD height=9 vAlign=top width="20%">7 (201)

      </TD><TD height=9 vAlign=top width="20%">35.26

      </TD><TD height=9 vAlign=top width="20%">0 (3)

      </TD><TD height=9 vAlign=top width="20%">0.53

      </TD></TR><TR><TD height=9 vAlign=top width="20%">5-14

      </TD><TD height=9 vAlign=top width="20%">7 (89)

      </TD><TD height=9 vAlign=top width="20%">5.96

      </TD><TD height=9 vAlign=top width="20%">1 (1)

      </TD><TD height=9 vAlign=top width="20%">0.07

      </TD></TR><TR><TD height=9 vAlign=top width="20%">15-24

      </TD><TD height=9 vAlign=top width="20%">2 (58)

      </TD><TD height=9 vAlign=top width="20%">3.21

      </TD><TD height=9 vAlign=top width="20%">0 (0)

      </TD><TD height=9 vAlign=top width="20%">0.00

      </TD></TR><TR><TD height=9 vAlign=top width="20%">25-44

      </TD><TD height=9 vAlign=top width="20%">7 (190)

      </TD><TD height=9 vAlign=top width="20%">5.17

      </TD><TD height=9 vAlign=top width="20%">0 (7)

      </TD><TD height=9 vAlign=top width="20%">0.19

      </TD></TR><TR><TD height=9 vAlign=top width="20%">45-64

      </TD><TD height=9 vAlign=top width="20%">12 (430)

      </TD><TD height=9 vAlign=top width="20%">11.66

      </TD><TD height=9 vAlign=top width="20%">2 (24)

      </TD><TD height=9 vAlign=top width="20%">0.65

      </TD></TR><TR><TD height=9 vAlign=top width="20%">65+

      </TD><TD height=9 vAlign=top width="20%">37 (1,623)

      </TD><TD height=9 vAlign=top width="20%">88.50

      </TD><TD height=9 vAlign=top width="20%">8 (184)

      </TD><TD height=9 vAlign=top width="20%">10.03

      </TD></TR><TR><TD height=9 vAlign=top width="20%">Unknown

      </TD><TD height=9 vAlign=top width="20%">0 (3)

      </TD><TD height=9 vAlign=top width="20%">-

      </TD><TD height=9 vAlign=top width="20%">0 (0)

      </TD><TD height=9 vAlign=top width="20%">-

      </TD></TR><TR><TD height=9 vAlign=top width="20%">Total

      </TD><TD height=9 vAlign=top width="20%">78 (2,751)

      </TD><TD height=9 vAlign=top width="20%">20.82

      </TD><TD height=9 vAlign=top width="20%">11 (221)

      </TD><TD height=9 vAlign=top width="20%">1.67

      </TD></TR></TBODY></TABLE>

      ...
      Full report:
      http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%209.pdf
      "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
      -Nelson Mandela

      Comment

      • #18
        Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 11

        Ontario Respiratory Virus Bulletin, 2012-2013 (Week 11: March 10, 2013 ? March 16, 2013)

        Summary of current and season-to-date respiratory virus activity

        ? Seasonal influenza activity continues to decline. The proportion of respiratory samples testing positive for influenza is now at 9.3% (with influenza A declining to 5.4% and influenza B increasing to 4.0%), compared to the seasonal peak of 33.4% in the last week of 2012.*

        o The majority of influenza cases this season (95.3%; 8,497/8,918) were influenza A (Table 1). The dominant circulating influenza A subtype is H3N2, representing 92.7% of all subtyped influenza A positive specimens.*

        o In the season to date, 1,038 confirmed institutional respiratory infection outbreaks have been reported, 562 (54.1%) of which were laboratory confirmed as influenza A and 11 (1.1%) of which were laboratory confirmed as influenza B (Table 4).

        o A total of 2,892 hospitalizations and 237 deaths have been reported among lab confirmed influenza cases in the current surveillance season to March 16 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (96.0% and 96.6%, respectively).

        ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

        o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism
        of institutional outbreaks. However, the overall number of newly reported influenza A outbreaks has since declined (Table 4, Figure 5).

        o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

        ? Among all circulating respiratory viruses in week 11 (Table 3):

        o Respiratory syncytial virus had the highest percent positivity (14.9%), which decreased from the previous week (18.7%).*

        o Human metapneumovirus had the second highest percent positivity (7.0%), and had a similar positivity compared to the previous week (7.1%).*
        ...

        Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 11 and cumulative (rates, and numbers in brackets) for the 2012-2013 season


        <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=571><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

        </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

        </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

        </TD><TD height=16 vAlign=top width="20%">Number of Deaths

        </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

        </TD></TR><TR><TD height=10 vAlign=top width="20%"><1

        </TD><TD height=10 vAlign=top width="20%">4 (165)

        </TD><TD height=10 vAlign=top width="20%">112.91

        </TD><TD height=10 vAlign=top width="20%">0 (2)

        </TD><TD height=10 vAlign=top width="20%">1.37

        </TD></TR><TR><TD height=10 vAlign=top width="20%">1-4

        </TD><TD height=10 vAlign=top width="20%">9 (217)

        </TD><TD height=10 vAlign=top width="20%">37.08

        </TD><TD height=10 vAlign=top width="20%">0 (3)

        </TD><TD height=10 vAlign=top width="20%">0.51

        </TD></TR><TR><TD height=10 vAlign=top width="20%">5-14

        </TD><TD height=10 vAlign=top width="20%">3 (97)

        </TD><TD height=10 vAlign=top width="20%">6.53

        </TD><TD height=10 vAlign=top width="20%">0 (1)

        </TD><TD height=10 vAlign=top width="20%">0.07

        </TD></TR><TR><TD height=10 vAlign=top width="20%">15-24

        </TD><TD height=10 vAlign=top width="20%">0 (59)

        </TD><TD height=10 vAlign=top width="20%">3.24

        </TD><TD height=10 vAlign=top width="20%">0 (0)

        </TD><TD height=10 vAlign=top width="20%">0.00

        </TD></TR><TR><TD height=10 vAlign=top width="20%">25-44

        </TD><TD height=10 vAlign=top width="20%">3 (200)

        </TD><TD height=10 vAlign=top width="20%">5.37

        </TD><TD height=10 vAlign=top width="20%">0 (9)

        </TD><TD height=10 vAlign=top width="20%">0.24

        </TD></TR><TR><TD height=10 vAlign=top width="20%">45-64

        </TD><TD height=10 vAlign=top width="20%">11 (453)

        </TD><TD height=10 vAlign=top width="20%">11.93

        </TD><TD height=10 vAlign=top width="20%">0 (25)

        </TD><TD height=10 vAlign=top width="20%">0.66

        </TD></TR><TR><TD height=10 vAlign=top width="20%">65+

        </TD><TD height=10 vAlign=top width="20%">28 (1,698)

        </TD><TD height=10 vAlign=top width="20%">85.98

        </TD><TD height=10 vAlign=top width="20%">2 (197)

        </TD><TD height=10 vAlign=top width="20%">9.97

        </TD></TR><TR><TD height=10 vAlign=top width="20%">Unknown

        </TD><TD height=10 vAlign=top width="20%">0 (3)

        </TD><TD height=10 vAlign=top width="20%">-

        </TD><TD height=10 vAlign=top width="20%">0 (0)

        </TD><TD height=10 vAlign=top width="20%">-

        </TD></TR><TR><TD height=10 vAlign=top width="20%">Total

        </TD><TD height=10 vAlign=top width="20%">58 (2,892)

        </TD><TD height=10 vAlign=top width="20%">21.37

        </TD><TD height=10 vAlign=top width="20%">2 (237)

        </TD><TD height=10 vAlign=top width="20%">1.75

        </TD></TR></TBODY></TABLE>
        ...

        Full report:
        http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%2011.pdf
        "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
        -Nelson Mandela

        Comment

        • #19
          Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 13

          Ontario Respiratory Virus Bulletin, 2012-2013 (Week 13: March 24, 2013 ? March 30, 2013)

          Summary of current and season-to-date respiratory virus activity in Ontario

          ? Seasonal influenza activity continues to decline. The proportion of respiratory samples testing positive for influenza is now at 7.2% (with influenza A declining to 2.2% and influenza B increasing to 5.0%), compared to the seasonal peak of 33.4% in the last week of 2012.*

          o The majority of influenza cases this season (94.1%; 8,582/9,116) were influenza A (Table 1). The dominant circulating influenza A subtype is H3N2, representing 92.2% of all subtyped influenza A positive specimens.*

          o In the season to date, 1,096 confirmed institutional respiratory infection outbreaks have been reported, 571 (52.1%) of which were laboratory confirmed as influenza A and 15 (1.4%) of which were laboratory confirmed as influenza B (Table 4).

          o A total of 3,021 hospitalizations and 242 deaths have been reported among lab confirmed influenza cases in the current surveillance season to March 30 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (95.0% and 96.3%, respectively).

          ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

          o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism of institutional outbreaks. However, the overall number of newly reported influenza A outbreaks has since declined (Table 4, Figure 5).

          o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

          ? Among all circulating respiratory viruses in week 13 (Table 3):

          o Respiratory syncytial virus had the highest percent positivity (11.1%), which was lower compared to the previous week (14.6%).*

          o Human metapneumovirus had the second highest percent positivity (7.3%), which was slightly higher compared to the previous week (6.2%).*
          ...

          Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 13 and cumulative (rates, and numbers in brackets) for the 2012-2013 season


          <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=550><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

          </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

          </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

          </TD><TD height=16 vAlign=top width="20%">Number of Deaths

          </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

          </TD></TR><TR><TD height=10 vAlign=top width="20%"><1

          </TD><TD height=10 vAlign=top width="20%">2 (172)

          </TD><TD height=10 vAlign=top width="20%">117.70

          </TD><TD height=10 vAlign=top width="20%">0 (2)

          </TD><TD height=10 vAlign=top width="20%">1.37

          </TD></TR><TR><TD height=10 vAlign=top width="20%">1-4

          </TD><TD height=10 vAlign=top width="20%">9 (236)

          </TD><TD height=10 vAlign=top width="20%">40.33

          </TD><TD height=10 vAlign=top width="20%">0 (3)

          </TD><TD height=10 vAlign=top width="20%">0.51

          </TD></TR><TR><TD height=10 vAlign=top width="20%">5-14

          </TD><TD height=10 vAlign=top width="20%">5 (105)

          </TD><TD height=10 vAlign=top width="20%">7.07

          </TD><TD height=10 vAlign=top width="20%">0 (1)

          </TD><TD height=10 vAlign=top width="20%">0.07

          </TD></TR><TR><TD height=10 vAlign=top width="20%">15-24

          </TD><TD height=10 vAlign=top width="20%">1 (60)

          </TD><TD height=10 vAlign=top width="20%">3.30

          </TD><TD height=10 vAlign=top width="20%">0 (0)

          </TD><TD height=10 vAlign=top width="20%">0.00

          </TD></TR><TR><TD height=10 vAlign=top width="20%">25-44

          </TD><TD height=10 vAlign=top width="20%">4 (211)

          </TD><TD height=10 vAlign=top width="20%">5.67

          </TD><TD height=10 vAlign=top width="20%">0 (9)

          </TD><TD height=10 vAlign=top width="20%">0.24

          </TD></TR><TR><TD height=10 vAlign=top width="20%">45-64

          </TD><TD height=10 vAlign=top width="20%">7 (469)

          </TD><TD height=10 vAlign=top width="20%">12.35

          </TD><TD height=10 vAlign=top width="20%">1 (26)

          </TD><TD height=10 vAlign=top width="20%">0.68

          </TD></TR><TR><TD height=10 vAlign=top width="20%">65+

          </TD><TD height=10 vAlign=top width="20%">34 (1,765)

          </TD><TD height=10 vAlign=top width="20%">89.37

          </TD><TD height=10 vAlign=top width="20%">2 (201)

          </TD><TD height=10 vAlign=top width="20%">10.18

          </TD></TR><TR><TD height=10 vAlign=top width="20%">Unknown

          </TD><TD height=10 vAlign=top width="20%">0 (3)

          </TD><TD height=10 vAlign=top width="20%">-

          </TD><TD height=10 vAlign=top width="20%">0 (0)

          </TD><TD height=10 vAlign=top width="20%">-

          </TD></TR><TR><TD height=10 vAlign=top width="20%">Total

          </TD><TD height=10 vAlign=top width="20%">62 (3,021)

          </TD><TD height=10 vAlign=top width="20%">22.32

          </TD><TD height=10 vAlign=top width="20%">3 (242)

          </TD><TD height=10 vAlign=top width="20%">1.79

          </TD></TR></TBODY></TABLE>

          ...
          http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%2013.pdf
          "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
          -Nelson Mandela

          Comment

          • #20
            Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 14

            Ontario Respiratory Virus Bulletin, 2012-2013 (Week 14: March 31, 2013 ? April 6, 2013)

            Summary of current and season-to-date respiratory virus activity in Ontario

            ? The proportion of respiratory samples testing positive for influenza is now at 7.8% (with influenza A at 2.8% and influenza B at 5.0%) compared to the seasonal peak of 33.4% in the last week of 2012.*

            o The majority of influenza cases this season (93.4%; 8,618/9,230) were influenza A (Table 1). The dominant circulating influenza A subtype is H3N2, representing 92.0% of all subtyped influenza A positive specimens.*

            o In the season to date, 1,124 confirmed institutional respiratory infection outbreaks have been reported, 571 (50.8%) of which were laboratory confirmed as influenza A and 21 (1.9%) of which were laboratory confirmed as influenza B (Table 4).

            o A total of 3,118 hospitalizations and 245 deaths have been reported among lab confirmed influenza cases in the current surveillance season to April 6 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (94.3% and 96.3%, respectively).

            ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

            o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism of institutional outbreaks (Table 4, Figure 5). Percent positivity results indicate that respiratory syncytial virus is currently the predominant circulating respiratory virus in Ontario (Figure 3).*

            o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

            ? Among all circulating respiratory viruses in week 14 (Table 3):

            o Respiratory syncytial virus had the highest percent positivity (13.2%), which was higher compared to the previous week (11.1%).*

            o Human metapneumovirus had the second highest percent positivity (9.4%), which was higher compared to the previous week (7.3%).*
            ...

            Update on human infections with novel influenza A(H7N9) in China
            As of April 11, 2013 at 11:00 a.m. EST

            On March 31, 2013, China announced the identification of a novel influenza A virus, A(H7N9). Prior to this event, there were no reports of human infection with A(H7N9), although other A(H7) subtype infections causing human illness have been reported in Europe and North America. As of April 11, 2013 at 11:00 a.m. EST, the World Health Organization (WHO) has reported a total of 38 cases, with 10 deaths, 19 severe cases and 9 cases with mild illness. More than 760 close contacts of the confirmed cases are being closely monitored. WHO has stated that preliminary investigations have not uncovered any epidemiological links between the laboratory confirmed cases.

            Recent investigations have identified the virus in various poultry species including pigeons, chicken and ducks. Investigations are ongoing to determine potential reservoirs and modes of transmission as the source of infection remains unclear.

            Public Health Ontario Laboratories (PHOL) will be alerted of a possible case if a specimen is influenza-positive but un-subtypeable when tested by first line subtyping assays (seasonal A(H3N2) HA gene and A(H1N1)pdm09 NA gene), as is done with the current testing algorithm. According to current practice, any un-subtypeable influenza A-positive specimens are forwarded to the National Microbiology Laboratory for further investigation in parallel to PHOL conducting further testing.


            ? World Health Organization: Avian influenza situation updates
            ? Public Health Ontario: Hot Topics in Public Health
            ? Public Health Agency of Canada: Summary assessment of public health risk
            ...


            Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 14 and cumulative (rates, and numbers in brackets) for the 2012-2013 season

            <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=550><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

            </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

            </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

            </TD><TD height=16 vAlign=top width="20%">Number of Deaths

            </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

            </TD></TR><TR><TD height=9 vAlign=top width="20%"><1

            </TD><TD height=9 vAlign=top width="20%">9 (181)

            </TD><TD height=9 vAlign=top width="20%">123.86

            </TD><TD height=9 vAlign=top width="20%">0 (2)

            </TD><TD height=9 vAlign=top width="20%">1.37

            </TD></TR><TR><TD height=9 vAlign=top width="20%">1-4

            </TD><TD height=9 vAlign=top width="20%">20 (256)

            </TD><TD height=9 vAlign=top width="20%">43.75

            </TD><TD height=9 vAlign=top width="20%">0 (3)

            </TD><TD height=9 vAlign=top width="20%">0.51

            </TD></TR><TR><TD height=9 vAlign=top width="20%">5-14

            </TD><TD height=9 vAlign=top width="20%">5 (110)

            </TD><TD height=9 vAlign=top width="20%">7.41

            </TD><TD height=9 vAlign=top width="20%">0 (1)

            </TD><TD height=9 vAlign=top width="20%">0.07

            </TD></TR><TR><TD height=9 vAlign=top width="20%">15-24

            </TD><TD height=9 vAlign=top width="20%">2 (62)

            </TD><TD height=9 vAlign=top width="20%">3.40

            </TD><TD height=9 vAlign=top width="20%">0 (0)

            </TD><TD height=9 vAlign=top width="20%">0.00

            </TD></TR><TR><TD height=9 vAlign=top width="20%">25-44

            </TD><TD height=9 vAlign=top width="20%">6 (217)

            </TD><TD height=9 vAlign=top width="20%">5.83

            </TD><TD height=9 vAlign=top width="20%">0 (9)

            </TD><TD height=9 vAlign=top width="20%">0.24

            </TD></TR><TR><TD height=9 vAlign=top width="20%">45-64

            </TD><TD height=9 vAlign=top width="20%">15 (484)

            </TD><TD height=9 vAlign=top width="20%">12.74

            </TD><TD height=9 vAlign=top width="20%">1 (27)

            </TD><TD height=9 vAlign=top width="20%">0.71

            </TD></TR><TR><TD height=9 vAlign=top width="20%">65+

            </TD><TD height=9 vAlign=top width="20%">40 (1,805)

            </TD><TD height=9 vAlign=top width="20%">91.39

            </TD><TD height=9 vAlign=top width="20%">2 (203)

            </TD><TD height=9 vAlign=top width="20%">10.28

            </TD></TR><TR><TD height=9 vAlign=top width="20%">Unknown

            </TD><TD height=9 vAlign=top width="20%">0 (3)

            </TD><TD height=9 vAlign=top width="20%">-

            </TD><TD height=9 vAlign=top width="20%">0 (0)

            </TD><TD height=9 vAlign=top width="20%">-

            </TD></TR><TR><TD height=9 vAlign=top width="20%">Total

            </TD><TD height=9 vAlign=top width="20%">97 (3,118)

            </TD><TD height=9 vAlign=top width="20%">23.04

            </TD><TD height=9 vAlign=top width="20%">3 (245)

            </TD><TD height=9 vAlign=top width="20%">1.81

            </TD></TR></TBODY></TABLE>

            ...
            Full report:
            http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%2014.pdf
            "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
            -Nelson Mandela

            Comment

            • #21
              Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 15

              Ontario Respiratory Virus Bulletin, 2012-2013 (Week 15: April 7, 2013 ? April 13, 2013)

              Summary of current and season-to-date respiratory virus activity in Ontario

              ? The proportion of respiratory samples testing positive for influenza is now at 7.6% (with influenza A at 1.9% and influenza B at 5.7%),* which is within the expected range based on the influenza positivity observed over the last four non-pandemic affected seasons.

              o The majority of influenza cases this season (92.6%; 8,641/9,333) were influenza A (Table 1). The dominant circulating influenza A subtype is H3N2, representing 91.6% of all subtyped influenza A positive specimens.*

              o In the season to date, 1,154 confirmed institutional respiratory infection outbreaks have been reported, 572 (49.6%) of which were laboratory confirmed as influenza A and 25 (2.2%) of which were laboratory confirmed as influenza B (Table 4).

              o A total of 3,185 hospitalizations and 245 deaths have been reported among lab confirmed influenza cases in the current surveillance season to April 13 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (93.7% and 96.3%, respectively).

              ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

              o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism of institutional outbreaks (Table 4, Figure 5). Percent positivity results indicate that respiratory syncytial virus is currently the predominant circulating respiratory virus in Ontario (Table 3).*

              o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

              ? Among all circulating respiratory viruses in week 15 (Table 3):

              o Respiratory syncytial virus had the highest percent positivity (8.5%), which was lower compared to the previous week (13.2%).*

              o Human metapneumovirus had the second highest percent positivity (7.4%), which was lower compared to the previous week (9.4%).*
              ...
              Update on human infections with avian influenza A(H7N9) virus* in China
              As of April 18, 2013


              On March 31, 2013, China announced the identification of three cases of human infection with avian influenza A virus A(H7N9). Prior to this event, there had been no previous reports of human infection with A(H7N9), although other A(H7) subtype infections causing human illness have been reported in Europe and North America, mainly in association with poultry outbreaks.

              As of April 18, 2013, the World Health Organization (WHO) has reported a total of 87 human cases of A(H7N9), including 17 deaths. Cases have been reported from four provinces: Anhui (3 cases), Henan (3 cases), Jiangsu (21 cases) and Zhejiang (27 cases); and two municipalities: Beijing (1 case) and Shanghai (32 cases). More than 1,000 close contacts of the confirmed cases are being closely monitored.

              Recent investigations have identified the virus in various poultry species including pigeons, chickens and ducks. Investigations are ongoing to determine potential reservoirs and modes of transmission as the source of infection remains unclear. According to the WHO, there is currently no evidence of sustained human-to-human transmission of A(H7N9). Until a source of infection is identified, it is likely that there will be further cases of human infection identified in previously unaffected areas of China.

              At this time, there have been no cases of A(H7N9) reported outside of China, although the Public Health Agency of Canada has issued a Level 2 Travel Health Notice for the situation (practice special precautions). Public Health Ontario Laboratories (PHOL) will be alerted of a possible case if a specimen is influenza-positive but un-subtypeable when tested by first line subtyping assays (seasonal A(H3N2) HA gene and A(H1N1)pdm09 NA gene), as is done with the current testing algorithm. According to current practice, any un-subtypeable influenza A-positive specimens are forwarded to the National Microbiology Laboratory for further investigation in parallel to PHOL conducting further testing.

              This is the last weekly update of H7N9 in the Ontario Respiratory Virus Bulletin. For the latest updates and information, please refer to the resources below:
              ? World Health Organization: Avian influenza situation updates
              ? Public Health Agency of Canada: H7N9 avian influenza
              ?               Ministry of Health and Long-Term Care: Influenza A(H7N9) virus in China
              ? Public Health Ontario: Hot Topics in Public Health
              ...

              Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 15 and cumulative (rates, and numbers in brackets) for the 2012-2013 season



              <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=550><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group


              </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations


              </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000


              </TD><TD height=16 vAlign=top width="20%">Number of Deaths


              </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000


              </TD></TR><TR><TD height=9 vAlign=top width="20%"><1


              </TD><TD height=9 vAlign=top width="20%">1 (182)


              </TD><TD height=9 vAlign=top width="20%">124.54


              </TD><TD height=9 vAlign=top width="20%">0 (2)


              </TD><TD height=9 vAlign=top width="20%">1.37


              </TD></TR><TR><TD height=9 vAlign=top width="20%">1-4


              </TD><TD height=9 vAlign=top width="20%">8 (264)


              </TD><TD height=9 vAlign=top width="20%">45.12


              </TD><TD height=9 vAlign=top width="20%">0 (3)


              </TD><TD height=9 vAlign=top width="20%">0.51


              </TD></TR><TR><TD height=9 vAlign=top width="20%">5-14


              </TD><TD height=9 vAlign=top width="20%">2 (112)


              </TD><TD height=9 vAlign=top width="20%">7.54


              </TD><TD height=9 vAlign=top width="20%">0 (1)


              </TD><TD height=9 vAlign=top width="20%">0.07


              </TD></TR><TR><TD height=9 vAlign=top width="20%">15-24


              </TD><TD height=9 vAlign=top width="20%">1 (63)


              </TD><TD height=9 vAlign=top width="20%">3.46


              </TD><TD height=9 vAlign=top width="20%">0 (0)


              </TD><TD height=9 vAlign=top width="20%">0.00


              </TD></TR><TR><TD height=9 vAlign=top width="20%">25-44


              </TD><TD height=9 vAlign=top width="20%">2 (219)


              </TD><TD height=9 vAlign=top width="20%">5.88


              </TD><TD height=9 vAlign=top width="20%">0 (9)


              </TD><TD height=9 vAlign=top width="20%">0.24


              </TD></TR><TR><TD height=9 vAlign=top width="20%">45-64


              </TD><TD height=9 vAlign=top width="20%">21 (505)


              </TD><TD height=9 vAlign=top width="20%">13.29


              </TD><TD height=9 vAlign=top width="20%">0 (27)


              </TD><TD height=9 vAlign=top width="20%">0.71


              </TD></TR><TR><TD height=9 vAlign=top width="20%">65+


              </TD><TD height=9 vAlign=top width="20%">32 (1,837)


              </TD><TD height=9 vAlign=top width="20%">93.02


              </TD><TD height=9 vAlign=top width="20%">0 (203)


              </TD><TD height=9 vAlign=top width="20%">10.28


              </TD></TR><TR><TD height=9 vAlign=top width="20%">Unknown


              </TD><TD height=9 vAlign=top width="20%">0 (3)


              </TD><TD height=9 vAlign=top width="20%">-


              </TD><TD height=9 vAlign=top width="20%">0 (0)


              </TD><TD height=9 vAlign=top width="20%">-


              </TD></TR><TR><TD height=9 vAlign=top width="20%">Total


              </TD><TD height=9 vAlign=top width="20%">67 (3,185)


              </TD><TD height=9 vAlign=top width="20%">23.54


              </TD><TD height=9 vAlign=top width="20%">0 (245)


              </TD><TD height=9 vAlign=top width="20%">1.81


              </TD></TR></TBODY></TABLE>

              Full report:
              http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario%20Respiratory%20Virus%20Bulletin-Week%2015.pdf
              "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
              -Nelson Mandela

              Comment

              • #22
                Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 16

                Ontario Respiratory Virus Bulletin, 2012-2013 (Week 16: April 14, 2013 ? April 20, 2013)

                Summary of current and season-to-date respiratory virus activity in Ontario

                ? Influenza activity has been relatively stable in recent weeks and is no longer the dominant circulating respiratory virus in Ontario, with the proportion of respiratory samples testing positive for all influenza virus types now at 7.5% (with influenza A at 1.1% and influenza B at 6.4%).*

                o The majority of influenza cases this season (91.8%; 8,658/9,428) were influenza A (Table 1). The dominant circulating influenza A subtype is H3N2, representing 91.5% of all subtyped influenza A positive specimens.*

                o In the season to date, 1,183 confirmed institutional respiratory infection outbreaks have been reported, 575 (48.6%) of which were laboratory confirmed as influenza A and 32 (2.7%) of which were laboratory confirmed as influenza B (Table 4).

                o A total of 3,290 hospitalizations and 250 deaths have been reported among lab confirmed influenza cases in the current surveillance season to April 20 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (93.1% and 96.4%, respectively).

                ? The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

                o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism identified. The number of influenza A outbreaks has since declined and currently, a variety of causative organisms are being identified in institutional respiratory infection outbreaks, including influenza B (Table 4, Figure 5).

                o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

                ? Among all circulating respiratory viruses in week 16 (Table 3):

                o Human metapneumovirus had the highest percent positivity (6.5%), which was lower compared to the previous week (7.4%).*

                o Influenza B had the second highest percent positivity (6.4%), which was higher compared to the previous week (5.7%).*
                ...

                Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 16 and cumulative (rates, and numbers in brackets) for the 2012-2013 season

                <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=550><TBODY><TR><TD height=16 vAlign=top width="20%">Age Group

                </TD><TD height=16 vAlign=top width="20%">Number of Hospitalizations

                </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

                </TD><TD height=16 vAlign=top width="20%">Number of Deaths

                </TD><TD height=16 vAlign=top width="20%">Cumulative Rate per 100,000

                </TD></TR><TR><TD height=9 vAlign=top width="20%"><1

                </TD><TD height=9 vAlign=top width="20%">4 (186)

                </TD><TD height=9 vAlign=top width="20%">127.28

                </TD><TD height=9 vAlign=top width="20%">0 (2)

                </TD><TD height=9 vAlign=top width="20%">1.37

                </TD></TR><TR><TD height=9 vAlign=top width="20%">1-4

                </TD><TD height=9 vAlign=top width="20%">13 (277)

                </TD><TD height=9 vAlign=top width="20%">47.34

                </TD><TD height=9 vAlign=top width="20%">0 (3)

                </TD><TD height=9 vAlign=top width="20%">0.51

                </TD></TR><TR><TD height=9 vAlign=top width="20%">5-14

                </TD><TD height=9 vAlign=top width="20%">11 (123)

                </TD><TD height=9 vAlign=top width="20%">8.28

                </TD><TD height=9 vAlign=top width="20%">0 (1)

                </TD><TD height=9 vAlign=top width="20%">0.07

                </TD></TR><TR><TD height=9 vAlign=top width="20%">15-24

                </TD><TD height=9 vAlign=top width="20%">1 (64)

                </TD><TD height=9 vAlign=top width="20%">3.51

                </TD><TD height=9 vAlign=top width="20%">0 (0)

                </TD><TD height=9 vAlign=top width="20%">0.00

                </TD></TR><TR><TD height=9 vAlign=top width="20%">25-44

                </TD><TD height=9 vAlign=top width="20%">9 (228)

                </TD><TD height=9 vAlign=top width="20%">6.13

                </TD><TD height=9 vAlign=top width="20%">0 (9)

                </TD><TD height=9 vAlign=top width="20%">0.24

                </TD></TR><TR><TD height=9 vAlign=top width="20%">45-64

                </TD><TD height=9 vAlign=top width="20%">20 (525)

                </TD><TD height=9 vAlign=top width="20%">13.82

                </TD><TD height=9 vAlign=top width="20%">1 (28)

                </TD><TD height=9 vAlign=top width="20%">0.74

                </TD></TR><TR><TD height=9 vAlign=top width="20%">65+

                </TD><TD height=9 vAlign=top width="20%">47 (1,884)

                </TD><TD height=9 vAlign=top width="20%">95.40

                </TD><TD height=9 vAlign=top width="20%">4 (207)

                </TD><TD height=9 vAlign=top width="20%">10.48

                </TD></TR><TR><TD height=9 vAlign=top width="20%">Unknown

                </TD><TD height=9 vAlign=top width="20%">0 (3)

                </TD><TD height=9 vAlign=top width="20%">-

                </TD><TD height=9 vAlign=top width="20%">0 (0)

                </TD><TD height=9 vAlign=top width="20%">-

                </TD></TR><TR><TD height=9 vAlign=top width="20%">Total

                </TD><TD height=9 vAlign=top width="20%">105 (3,290)

                </TD><TD height=9 vAlign=top width="20%">24.31

                </TD><TD height=9 vAlign=top width="20%">5 (250)

                </TD><TD height=9 vAlign=top width="20%">1.85

                </TD></TR></TBODY></TABLE>
                ...
                Full report:
                http://www.oahpp.ca/resources/documents/ontario_respiratory_surveillance/Ontario_Respiratory_Virus_Bulletin-Week_16.pdf
                "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                -Nelson Mandela

                Comment

                • #23
                  Re: Ontario Respiratory Virus Bulletin 2012-2013 - Surveillance Week 19

                  Ontario Respiratory Virus Bulletin, 2012-2013 (Week 19: May 5, 2013 ? May 11, 2013)

                  Summary of current and season-to-date respiratory virus activity in Ontario

                   Influenza activity is lower, with the proportion of respiratory samples testing positive for all influenza virus types now at 5.8% (influenza A is at 1.2% and influenza B is at 4.6%).*

                  o The majority of influenza cases this season (90.1%; 8,725/9,679) were influenza A (Table 1). The dominant circulating influenza A subtype was H3N2, representing 91.0% of all subtyped influenza A positive specimens.*

                  o In the season to date, 1,243 confirmed institutional respiratory infection outbreaks have been reported, 580 (46.7%) of which were laboratory confirmed as influenza A and 39 (3.1%) of which were laboratory confirmed as influenza B (Table 4).

                  o A total of 3,464 hospitalizations and 261 deaths have been reported among lab confirmed influenza cases in the current surveillance season to May 11 (Table 2). The majority of hospitalizations and deaths occurred in influenza A cases (91.6% and 94.6%, respectively).

                   The cause of influenza-like-illness (ILI) activity in the 2012-2013 surveillance season is changing as the season progresses.

                  o At the beginning of the season, entero/rhinovirus was the causative organism identified in most institutional respiratory infection outbreaks. Subsequently, influenza A became the most common causative organism identified. The number of influenza A outbreaks has since declined and in recent weeks, a variety of causative organisms have been identified in institutional respiratory infection outbreaks. (Table 4, Figure 5).

                  o For the season to date, influenza A has had the highest percent positivity overall, followed by respiratory syncytial virus (Table 3).*

                   Among all other circulating respiratory viruses in week 19 (Table 3):

                  o Entero/rhinovirus had the highest percent positivity (10.7%), which was similar compared to the previous week (10.5%).*

                  o Parainfluenza had the second highest percent positivity (7.5%), which was slightly higher compared to the previous week (5.3%).*
                  ...

                  Table 2. Hospitalizations and deaths among confirmed influenza cases by age group: Ontario, week 19 and cumulative (rates, and numbers in brackets) for the 2012-2013 season


                  <TABLE dir=ltr border=1 cellSpacing=0 cellPadding=7 width=535><TBODY><TR><TD height=15 vAlign=top width="20%">Age group

                  </TD><TD height=15 vAlign=top width="20%">Number of hospitalizations

                  </TD><TD height=15 vAlign=top width="20%">Cumulative rate per 100,000

                  </TD><TD height=15 vAlign=top width="20%">Number of
                  deaths

                  </TD><TD height=15 vAlign=top width="20%">Cumulative rate
                  per 100,000

                  </TD></TR><TR><TD height=7 vAlign=top width="20%"><1

                  </TD><TD height=7 vAlign=top width="20%">1 (202)

                  </TD><TD height=7 vAlign=top width="20%">138.23

                  </TD><TD height=7 vAlign=top width="20%">0 (2)

                  </TD><TD height=7 vAlign=top width="20%">1.37

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">1-4

                  </TD><TD height=7 vAlign=top width="20%">4 (300)

                  </TD><TD height=7 vAlign=top width="20%">51.27

                  </TD><TD height=7 vAlign=top width="20%">0 (3)

                  </TD><TD height=7 vAlign=top width="20%">0.51

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">5-14

                  </TD><TD height=7 vAlign=top width="20%">2 (143)

                  </TD><TD height=7 vAlign=top width="20%">9.63

                  </TD><TD height=7 vAlign=top width="20%">0 (1)

                  </TD><TD height=7 vAlign=top width="20%">0.07

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">15-24

                  </TD><TD height=7 vAlign=top width="20%">0 (66)

                  </TD><TD height=7 vAlign=top width="20%">3.62

                  </TD><TD height=7 vAlign=top width="20%">0 (0)

                  </TD><TD height=7 vAlign=top width="20%">0.00

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">25-44

                  </TD><TD height=7 vAlign=top width="20%">0 (239)

                  </TD><TD height=7 vAlign=top width="20%">6.42

                  </TD><TD height=7 vAlign=top width="20%">0 (9)

                  </TD><TD height=7 vAlign=top width="20%">0.24

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">45-64

                  </TD><TD height=7 vAlign=top width="20%">5 (552)

                  </TD><TD height=7 vAlign=top width="20%">14.53

                  </TD><TD height=7 vAlign=top width="20%">0 (30)

                  </TD><TD height=7 vAlign=top width="20%">0.79

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">65+

                  </TD><TD height=7 vAlign=top width="20%">11 (1959)

                  </TD><TD height=7 vAlign=top width="20%">99.19

                  </TD><TD height=7 vAlign=top width="20%">1 (216)

                  </TD><TD height=7 vAlign=top width="20%">10.94

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">Unknown

                  </TD><TD height=7 vAlign=top width="20%">0 (3)

                  </TD><TD height=7 vAlign=top width="20%">-

                  </TD><TD height=7 vAlign=top width="20%">0 (0)

                  </TD><TD height=7 vAlign=top width="20%">-

                  </TD></TR><TR><TD height=7 vAlign=top width="20%">Total

                  </TD><TD height=7 vAlign=top width="20%">23 (3464)

                  </TD><TD height=7 vAlign=top width="20%">25.60

                  </TD><TD height=7 vAlign=top width="20%">1 (261)

                  </TD><TD height=7 vAlign=top width="20%">1.93

                  </TD></TR></TBODY></TABLE>

                  ...

                  Full report:
                  http://osd.oahpp.ca/en/DataAndAnalytics/Documents/Ontario_Respiratory_Virus_Bulletin_Week_19_2013.pdf


                  Previous reports:
                  http://osd.oahpp.ca/en/ServicesAndTools/SurveillanceServices/Pages/Ontario-Respiratory-Virus-Bulletin.aspx
                  "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
                  -Nelson Mandela

                  Comment

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