Ronan Kelly
Retired 2020
Influenza Season, Update for Week 15*
(Week ending Saturday, 04/16/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf
Key Points
Flu activity is now past peak in Connecticut and in most of the country; however, it continues to be
classified geographically in Connecticut as widespread**.
The predominant influenza viruses identified this season are Type A, although an increasing number of
Type B flu viruses are continuing to be reported.
The predominant Type A isolates subtyped have been 2009 H1N1.
It is still important to take steps to prevent influenza-related illness and hospitalization:
http://www.ct.gov/dph/cwp/view.asp?a=3115&q=500340
...
Statewide emergency department visits attributed to the ?fever/flu syndrome? had reached 9.6% and it is
currently at 6.1% statewide; 5% is generally considered the minimum threshold when there are elevated
influenza-associated ED visits (Figure 1).
The percentage of outpatient visits with influenza-like illness (ILI) had reached 4.2% and is currently at
1.8%; 1% is generally considered the baseline when there are increased influenza-associated visits in the
outpatient setting (Figure 2).
The percentage of unscheduled hospital admissions due to pneumonia has been below 4% statewide during
the past 3 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
A total of 1,090 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 741 are Type A (subtype unspecified), 155 are Type A (2009 H1N1), 9 are Type A (H3N2), and
185 are influenza B virus. A total of 26 reports of influenza-associated deaths have been received to date,
most associated with illness occurring during this season?s peak activity weeks in March. Of these, 17 were
patients greater than 65 years of age, seven were 50-64 years of age, and two were 25-49 years of age
(Figures 4 & 5).
A total of 4,489 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (1,454), New Haven (1,245), Hartford (1,059), New London
(208), Tolland (154), Litchfield (136), Windham (121), and Middlesex (112). Of the 4,489 positive
influenza reports: 2,361 are Type A (subtype unspecified), 909 are Type A (2009 H1N1), 46 are Type A
(H3N2), and 1,173 are influenza B virus (Figures 6 & 7).
...
(Week ending Saturday, 04/16/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf
Key Points
Flu activity is now past peak in Connecticut and in most of the country; however, it continues to be
classified geographically in Connecticut as widespread**.
The predominant influenza viruses identified this season are Type A, although an increasing number of
Type B flu viruses are continuing to be reported.
The predominant Type A isolates subtyped have been 2009 H1N1.
It is still important to take steps to prevent influenza-related illness and hospitalization:
http://www.ct.gov/dph/cwp/view.asp?a=3115&q=500340
...
Statewide emergency department visits attributed to the ?fever/flu syndrome? had reached 9.6% and it is
currently at 6.1% statewide; 5% is generally considered the minimum threshold when there are elevated
influenza-associated ED visits (Figure 1).
The percentage of outpatient visits with influenza-like illness (ILI) had reached 4.2% and is currently at
1.8%; 1% is generally considered the baseline when there are increased influenza-associated visits in the
outpatient setting (Figure 2).
The percentage of unscheduled hospital admissions due to pneumonia has been below 4% statewide during
the past 3 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
A total of 1,090 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 741 are Type A (subtype unspecified), 155 are Type A (2009 H1N1), 9 are Type A (H3N2), and
185 are influenza B virus. A total of 26 reports of influenza-associated deaths have been received to date,
most associated with illness occurring during this season?s peak activity weeks in March. Of these, 17 were
patients greater than 65 years of age, seven were 50-64 years of age, and two were 25-49 years of age
(Figures 4 & 5).
A total of 4,489 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (1,454), New Haven (1,245), Hartford (1,059), New London
(208), Tolland (154), Litchfield (136), Windham (121), and Middlesex (112). Of the 4,489 positive
influenza reports: 2,361 are Type A (subtype unspecified), 909 are Type A (2009 H1N1), 46 are Type A
(H3N2), and 1,173 are influenza B virus (Figures 6 & 7).
...