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Connecticut Influenza Reports Winter 2015-16

Ronan Kelly

Ronan Kelly

Retired 2020
Link to 2014-15 thread: https://flutrackers.com/forum/forum...22453-ct-37-flu-related-deaths-all-in-seniors
Link to Department of Public Health: http://www.ct.gov/dph/site/default.asp

Influenza Season, Update for Week 47* (Week ending Saturday, 11/28/2015) Key Points
 Overall activity is increasing and is currently classified geographically as sporadic**.
 The predominant influenza viruses identified this season are Type A, although the percentage of Type B influenza viruses in circulation had recently increased.
 One influenza-associated death has been reported.
 It is time to obtain your flu vaccine and take other 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? have recently increased above
the level of 5% statewide; 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 been gradually increasing for several
weeks, but has recently decreased below a level of 1% statewide; 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 gradually increasing but
remains below a level of 4% statewide; generally considered the baseline when there may be increased
pneumonia hospitalizations due to influenza (Figure 3).
 A total of 37 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 28 were Type A (subtype unspecified), 1 was Type A (H3N2), 1 was Type A (2009 H1N1), and 7
were influenza B virus. One influenza-associated death in an individual greater than 65 years of age has
been reported to date, this season (Figures 4 & 5).
 A total of 77 positive influenza reports have been reported for the current season. Influenza was reported in
seven of eight Connecticut counties: Fairfield (25 reports), Hartford (20), New Haven (16), New London
(7), Middlesex (4), Litchfield (3), and Windham (2). Of the 77 positive influenza reports: 53 were Type A
(subtype unspecified), 4 were Type A (H3N2), 3 were Type A (2009 H1N1), and 17 were influenza B virus
(Figures 6 & 7).
...
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf
 
Influenza Season, Update for Week 48*
(Week ending Saturday, 12/05/2015)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity is increasing and is currently classified geographically as local**.
 The predominant influenza viruses identified this season are Type A, with the percentage of Type B
influenza viruses in circulation beginning to decrease.
 One influenza-associated death has been reported.
 It is time to obtain your flu vaccine and take other 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? have recently increased above
the level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) had been gradually increasing for several
weeks, but had recently decreased below a level of 1% statewide; 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 generally increasing but
remains below a level of 4% statewide; generally considered the baseline when there may be increased
pneumonia hospitalizations due to influenza (Figure 3).
 A total of 43 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 34 were Type A (subtype unspecified), 1 was Type A (H3N2), 1 was Type A (2009 H1N1), and 7
were influenza B virus. One influenza-associated death in an individual greater than 65 years of age has
been reported to date, this season (Figures 4 & 5).
 A total of 93 positive influenza reports have been reported for the current season. Influenza was reported in
all eight Connecticut counties: Fairfield (31 reports), Hartford (25), New Haven (18), New London (7),
Middlesex (4), Litchfield (3), Windham (3) and Tolland (2). Of the 93 positive influenza reports: 67 were
Type A (subtype unspecified), 4 were Type A (H3N2), 3 were Type A (2009 H1N1), and 19 were influenza
B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 49*
(Week ending Saturday, 12/12/2015)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity is low in Connecticut, and most of the country; it is currently classified geographically in
Connecticut as local**.
 The predominant influenza viruses identified this season are Type A.
 An equal number Type A isolates subtyped have been H3N2 and 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have recently increased above
the level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) had been gradually increasing, but has
remained just below a level of 1% statewide for several weeks; 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 generally increasing but
remains below a level of 4% statewide; generally considered the baseline when there may be increased
pneumonia hospitalizations due to influenza (Figure 3).
 A total of 45 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 36 were Type A (subtype unspecified), 1 was Type A (H3N2), 1 was Type A (2009 H1N1), and 7
were influenza B virus. One influenza-associated death in an individual greater than 65 years of age has
been reported to date, this season (Figures 4 & 5).
 A total of 104 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (37 reports), Hartford (26), New Haven (19), New London (8),
Litchfield (4), Middlesex (4), Tolland (3) and Windham (3). Of the 104 positive influenza reports: 73 were
Type A (subtype unspecified), 4 were Type A (H3N2), 4 were Type A (2009 H1N1), and 23 were influenza
B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 50*
(Week ending Saturday, 12/19/2015)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity remains low in Connecticut, and most of the country; it is currently classified
geographically in Connecticut as local**.
 The predominant influenza viruses identified this season are Type A.
 An equal number Type A isolates subtyped have been H3N2 and 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have recently increased above
the level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) had been gradually increasing, but has
remained just below a level of 1% statewide for several weeks; 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 had been gradually increasing, but
has remained below a level of 4% statewide; generally considered the baseline when there may be increased
pneumonia hospitalizations due to influenza (Figure 3).
 A total of 49 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 39 were Type A (subtype unspecified), 1 was Type A (H3N2), 1 was Type A (2009 H1N1), and 8
were influenza B virus. One influenza-associated death in an individual greater than 65 years of age has
been reported to date, this season (Figures 4 & 5).
 A total of 120 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (42 reports), Hartford (33), New Haven (20), New London (10),
Litchfield (4), Middlesex (4), Tolland (4) and Windham (3). Of the 120 positive influenza reports: 83 were
Type A (subtype unspecified), 4 were Type A (H3N2), 4 were Type A (2009 H1N1), and 29 were influenza
B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 51*
(Week ending Saturday, 12/26/2015)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity remains low, but is beginning to increase in Connecticut and most of the country; it is
currently classified geographically in Connecticut as local**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to increase
above the level of 5% statewide; 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) have exceeded the level of 1% statewide
for several weeks; 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 have recently exceeded a level of 4%
statewide; generally considered the baseline when there may be increased pneumonia hospitalizations due to
influenza (Figure 3).
 A total of 59 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 48 are Type A (subtype unspecified), 2 are Type A (2009 H1N1), 1 is Type A (H3N2), and 8 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 136 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (44 reports), Hartford (35), New Haven (31), New London (10),
Litchfield (5), Middlesex (4), Tolland (4) and Windham (3). Of the 136 positive influenza reports: 95 are
Type A (subtype unspecified), 6 are Type A (2009 H1N1), 4 are Type A (H3N2), and 31 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 52*
(Week ending Saturday, 01/02/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity remains low, but is increasing in Connecticut and most of the country; it is currently
classified geographically in Connecticut as regional**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to increase
above the level of 5% statewide; 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) have exceeded the level of 1% statewide
for several weeks; 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 have recently exceeded a level of 4%
statewide; generally considered the baseline when there may be increased pneumonia hospitalizations due to
influenza (Figure 3).
 A total of 64 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 53 are Type A (subtype unspecified), 2 are Type A (2009 H1N1), 1 is Type A (H3N2), and 8 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 153 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (48 reports), Hartford (39), New Haven (39), New London (11),
Litchfield (5), Middlesex (4), Tolland (4) and Windham (3). Of the 153 positive influenza reports: 106 are
Type A (subtype unspecified), 10 are Type A (2009 H1N1), are Type A (H3N2), and 32 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 1*
(Week ending Saturday, 01/09/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity remains low, but is increasing in Connecticut and most of the country; it is currently
classified geographically in Connecticut as regional**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to increase
above the level of 5% statewide; 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) have continued to exceed the level of 1%
statewide; 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 have recently exceeded a level of 4%
statewide; generally considered the baseline when there may be increased pneumonia hospitalizations due to
influenza (Figure 3).
 A total of 76 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 62 are Type A (subtype unspecified), 4 are Type A (2009 H1N1), 1 is Type A (H3N2), and 9 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 179 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (54 reports), Hartford (51), New Haven (44), New London (12),
Litchfield (6), Middlesex (4), Tolland (4) and Windham (4). Of the 179 positive influenza reports: 125 are
Type A (subtype unspecified), 13 are Type A (2009 H1N1), 5 are Type A (H3N2), and 36 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 2*
(Week ending Saturday, 01/16/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Overall activity remains low, but is increasing in Connecticut and most of the country; it is currently
classified geographically in Connecticut as regional**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to increase
above the level of 5% statewide; 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) have continued to exceed the level of 1%
statewide; 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 have continued to exceed a level of
4% statewide; generally considered the baseline when there may be increased pneumonia hospitalizations
due to influenza (Figure 3).
 A total of 90 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 74 are Type A (subtype unspecified), 6 are Type A (2009 H1N1), 1 is Type A (H3N2), and 9 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 219 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Hartford (62 reports), Fairfield (61), New Haven (59), New London (13),
Litchfield (8), Middlesex (6), Tolland (6) and Windham (4). Of the 219 positive influenza reports: 154 are
Type A (subtype unspecified), 18 are Type A (2009 H1N1), 6 are Type A (H3N2), and 41 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 3*
(Week ending Saturday, 01/23/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Although influenza activity remains low, it is increasing in Connecticut and most of the country; it is
currently classified geographically in Connecticut as regional**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to exceed the
level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) have continued to exceed the level of 1%
statewide; 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 have continued to exceed a level of
4% statewide; generally considered the baseline when there may be increased pneumonia hospitalizations
due to influenza (Figure 3).
 A total of 110 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 91 are Type A (subtype unspecified), 7 are Type A (2009 H1N1), 1 is Type A (H3N2), and 11 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 280 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: New Haven (83), Fairfield (79), Hartford (76), New London (15),
Litchfield (9), Middlesex (7), Tolland (6) and Windham (5). Of the 280 positive influenza reports: 198 are
Type A (subtype unspecified), 27 are Type A (2009 H1N1), 6 are Type A (H3N2), and 49 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 4*
(Week ending Saturday, 01/30/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Although flu activity is low, it is continuing to increase in Connecticut and most of the country; it is
currently classified geographically in Connecticut as regional**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to exceed the
level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) have generally exceeded the level of 1%
statewide; 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 have generally exceeded a level of
4% statewide; considered the baseline when there may be increased pneumonia hospitalizations due to
influenza (Figure 3).
 A total of 145 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 122 are Type A (subtype unspecified), 8 are Type A (2009 H1N1), 1 is Type A (H3N2), and 14 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 368 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (113), New Haven (109), Hartford (97), New London (16),
Litchfield (9), Tolland (9), Windham (8), and Middlesex (7). Of the 368 positive influenza reports: 262 are
Type A (subtype unspecified), 42 are Type A (2009 H1N1), 7 are Type A (H3N2), and 57 are influenza B
virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 5*
(Week ending Saturday, 02/06/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Although flu activity is low, it is rapidly increasing in Connecticut and in parts of the country; it is currently
classified geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other 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? have continued to exceed the
level of 5% statewide; 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) have generally exceeded the level of 1%
statewide; 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 have generally exceeded a level of
4% statewide; generally considered the baseline when there may be increased pneumonia hospitalizations
due to influenza (Figure 3).
 A total of 184 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 157 are Type A (subtype unspecified), 11 are Type A (2009 H1N1), 1 is Type A (H3N2), and 15 are
influenza B virus. One influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 491 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (154), New Haven (144), Hartford (120), New London (25),
Litchfield (15), Tolland (14), Middlesex (10), and Windham (9). Of the 491 positive influenza reports: 359
are Type A (subtype unspecified), 57 are Type A (2009 H1N1), 7 are Type A (H3N2), and 68 are influenza
B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 6*
(Week ending Saturday, 02/13/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Although flu activity is low, it is rapidly increasing in Connecticut and in parts of the country; it is currently
classified geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 An increasing number of Type A isolates subtyped have been 2009 HIN1
 It is time to obtain your flu vaccine and take other steps to prevent influenza-related illness and
hospitalization: http://www.ct.gov/dph/cwp/view.asp?a=3115&q=500340

The Department of Public Health (DPH) uses multiple surveillance systems to monitor circulating flu viruses
throughout the year. All data are considered preliminary and updated with available information each week
starting in October and ending in May.

 Statewide emergency department visits attributed to the ?fever/flu syndrome? have continued to exceed the
level of 5% statewide; generally considered the minimum threshold when there are elevated influenzaassociated
ED visits (Figure 1).
 The percentage of outpatient visits with influenza-like illness (ILI) have continued to exceed the level of 1%
statewide; 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 have continued to exceed a level of
4% statewide; generally considered the baseline when there may be increased pneumonia hospitalizations
due to influenza (Figure 3).
 A total of 227 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 198 are Type A (subtype unspecified), 13 are Type A (2009 H1N1), 1 is Type A (H3N2), and 15 are
influenza B virus. Two influenza-associated death in an individual greater than 65 years of age has been
reported to date, this season (Figures 4 & 5).
 A total of 603 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: New Haven (185), Fairfield (183), Hartford (144), New London (27),
Tolland (19), Litchfield (17), Windham (15), and Middlesex (13). Of the 603 positive influenza reports:
435 are Type A (subtype unspecified), 79 are Type A (2009 H1N1), 10 are Type A (H3N2), and 79 are
influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 7*
(Week ending Saturday, 02/20/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has increased in Connecticut and in parts of the country during the last few weeks; it is currently
classified geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 The predominate Type A isolates subtyped have been 2009 HIN1
 It is important to take steps to prevent influenza-related illness and hospitalization:
http://www.ct.gov/dph/cwp/view.asp?a=3115&q=500340

The Department of Public Health (DPH) uses multiple surveillance systems to monitor circulating flu viruses
throughout the year. All data are considered preliminary and updated with available information each week
starting in October and ending in May.

 Statewide emergency department visits attributed to the ?fever/flu syndrome? reached 6.9% 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) has exceeded 3% statewide in 5 of the
past 6 weeks; 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 exceeded 4% statewide during 7
of the past 9 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 268 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 217 are Type A (subtype unspecified), 30 are Type A (2009 H1N1), 1 is Type A (H3N2), and 20 are
influenza B virus. Two influenza-associated deaths have been reported; both were patients greater than 65
years of age (Figures 4 & 5).
 A total of 776 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (244), New Haven (226), Hartford (183), Litchfield (31), New
London (31), Tolland (25), Middlesex (21), and Windham (15). Of the 776 positive influenza reports: 540
are Type A (subtype unspecified), 131 are Type A (2009 H1N1), 12 are Type A (H3N2), and 93 are
influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 8*
(Week ending Saturday, 02/27/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has increased in Connecticut and in parts of the country during the last few weeks; it is currently
classified geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 The predominate Type A isolates subtyped have been 2009 HIN1.
 It is important to take steps to prevent influenza-related illness and hospitalization:
http://www.ct.gov/dph/cwp/view.asp?a=3115&q=500340

The Department of Public Health (DPH) uses multiple surveillance systems to monitor circulating flu viruses
throughout the year. All data are considered preliminary and updated with available information each week
starting in October and ending in May.

 Statewide emergency department visits attributed to the ?fever/flu syndrome? have reached 7.8% 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) has exceeded 3% statewide in 5 of the
past 7 weeks; 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 exceeded 4% statewide during 8
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 333 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 266 are Type A (subtype unspecified), 39 are Type A (2009 H1N1), 1 is Type A (H3N2), and 27 are
influenza B virus. Two influenza-associated deaths have been reported; both were patients greater than 65
years of age (Figures 4 & 5).
 A total of 1,082 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (318), New Haven (315), Hartford (259), Tolland (51), New
London (48), Litchfield (35), Middlesex (29), and Windham (27). Of the 1,082 positive influenza reports:
768 are Type A (subtype unspecified), 173 are Type A (2009 H1N1), 14 are Type A (H3N2), and 127 are
influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 9*
(Week ending Saturday, 03/05/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has increased in Connecticut and in parts of the country during the last few weeks; it is currently
classified geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 The predominate Type A isolates subtyped have been 2009 HIN1.
 It is 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? have reached 8.7% 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) has exceeded 3% statewide in 6 of the
past 7 weeks; 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 exceeded 4% statewide during 8
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 432 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 347 are Type A (subtype unspecified), 51 are Type A (2009 H1N1), 1 is Type A (H3N2), and 33 are
influenza B virus. Two influenza-associated deaths have been reported; both were patients greater than 65
years of age (Figures 4 & 5).
 A total of 1,503 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (454), New Haven (432), Hartford (362), Tolland (72), New
London (64), Litchfield (47), Middlesex (38), and Windham (34). Of the 1,503 positive influenza reports:
1,035 are Type A (subtype unspecified), 274 are Type A (2009 H1N1), 19 are Type A (H3N2), and 175 are
influenza B virus (Figures 6 & 7).

...
 
Influenza Season, Update for Week 10*
(Week ending Saturday, 03/12/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has continued to increase in Connecticut and in parts of the country; it is currently classified
geographically in Connecticut as widespread**.
 The predominant influenza viruses identified this season are Type A.
 The predominate Type A isolates subtyped have been 2009 H1N1.
 It is 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? have reached 9.6% 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) has exceeded 3% statewide in 4 of the
past 7 weeks; 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 exceeded 4% statewide during 8
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 573 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 446 are Type A (subtype unspecified), 75 are Type A (2009 H1N1), 3 are Type A (H3N2), and 49
are influenza B virus. Five influenza-associated deaths have been reported; four were patients greater than
65 years of age and one was in a patient 50-64 years of age (Figures 4 & 5).
 A total of 1,965 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (612), New Haven (540), Hartford (476), Tolland (95), New
London (83), Litchfield (66), Middlesex (53), and Windham (40). Of the 1,965 positive influenza reports:
1,311 are Type A (subtype unspecified), 356 are Type A (2009 H1N1), 20 are Type A (H3N2), and 278 are
influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 11*
(Week ending Saturday, 03/19/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has continued to increase in Connecticut and in parts of the country; it is currently 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 being reported.
 The predominate Type A isolates subtyped have been 2009 H1N1.
 It is 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 8.8% 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) has exceeded 3% statewide in 4 of the
past 7 weeks; 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 exceeded 4% statewide during 8
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 709 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 556 are Type A (subtype unspecified), 87 are Type A (2009 H1N1), 5 are Type A (H3N2), and 61
are influenza B virus. Seven influenza-associated deaths have been reported; six were patients greater than
65 years of age and one was in a patient 50-64 years of age (Figures 4 & 5).
 A total of 2,596 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (843), New Haven (681), Hartford (626), New London (142),
Tolland (107), Litchfield (81), Middlesex (59), and Windham (57). Of the 2,596 positive influenza reports:
1,625 are Type A (subtype unspecified), 532 are Type A (2009 H1N1), 24 are Type A (H3N2), and 415 are
influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 12*
(Week ending Saturday, 03/26/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity may now have peaked in Connecticut and in most of the country; it is currently 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 being reported.
 The predominant Type A isolates subtyped have been 2009 H1N1.
 It is 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 7.9% 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) has exceeded 3% statewide in 3 of the
past 7 weeks; 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 exceeded 4% statewide during 8
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 812 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 622 are Type A (subtype unspecified), 100 are Type A (2009 H1N1), 5 are Type A (H3N2), and 85
are influenza B virus. Eight influenza-associated deaths have been reported; six were patients greater than
65 years of age and two were patients 50-64 years of age (Figures 4 & 5).
 A total of 3,060 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (967), New Haven (862), Hartford (708), New London (159),
Tolland (117), Litchfield (101), Middlesex (75), and Windham (71). Of the 3,060 positive influenza
reports: 1,854 are Type A (subtype unspecified), 616 are Type A (2009 H1N1), 28 are Type A (H3N2), and
562 are influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 13*
(Week ending Saturday, 04/02/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf

Key Points
 Flu activity has now peaked in Connecticut and in most of the country; it is currently 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 being reported.
 The predominant Type A isolates subtyped have been 2009 H1N1.
 It is 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 7.8% 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) has exceeded 3% statewide in 3 of the
past 7 weeks; 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 exceeded 4% statewide during 7
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 881 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 655 are Type A (subtype unspecified), 108 are Type A (2009 H1N1), 8 are Type A (H3N2), and
110 are influenza B virus. Reports of ten additional influenza-associated deaths were recently received,
which occurred during the peak activity weeks in March. These new reports increased our seasonal total
influenza-associated deaths to 18. Of these, 10 were patients greater than 65 years of age, six were 50-64
years of age, and two were 25-49 years of age (Figures 4 & 5).
 A total of 3,561 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (1,178), New Haven (1,043), Hartford (765), New London (172),
Tolland (130), Litchfield (103), Middlesex (91), and Windham (79). Of the 3,561 positive influenza
reports: 2,037 are Type A (subtype unspecified), 729 are Type A (2009 H1N1), 38 are Type A (H3N2), and
757 are influenza B virus (Figures 6 & 7).
...
 
Influenza Season, Update for Week 14*
(Week ending Saturday, 04/09/2016)
http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/thisweeksfluupdate.pdf


Key Points
 Flu activity has now peaked in Connecticut and in most of the country; it is currently 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 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 6.3% 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) has exceeded 3% statewide in 3 of the
past 7 weeks; 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 exceeded 4% statewide during 7
of the past 10 weeks; 4% is generally considered the baseline when there may be increased pneumonia
hospitalizations due to influenza (Figure 3).
 A total of 969 hospitalized patients with laboratory-confirmed influenza have been reported. Of these
reports, 701 are Type A (subtype unspecified), 115 are Type A (2009 H1N1), 8 are Type A (H3N2), and
145 are influenza B virus. A total of 25 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, 16 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 3,985 positive influenza reports have been reported for the current season. Influenza was reported
in all eight Connecticut counties: Fairfield (1,327), New Haven (1,156), Hartford (852), New London (185),
Tolland (139), Litchfield (122), Middlesex (103), and Windham (101). Of the 3,985 positive influenza
reports: 2,193 are Type A (subtype unspecified), 809 are Type A (2009 H1N1), 42 are Type A (H3N2), and
941 are influenza B virus (Figures 6 & 7).
...
 
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