Connecticut 2010-2011 Season: Weeks 1-36 (One Pediatric Death)

[Missouriwatcher]

Week 1: Widespread
1 death reported

The percentage of total emergency department visits for the ?fever/flu? syndrome category has been gradually increasing statewide and is most recently evident in eastern Connecticut.

The percentage of outpatient visits with influenza-like illness has been gradually increasing but remains low.

The number of weekly hospital pneumonia admissions has increased significantly over the past 2 weeks.

During the past week, 26 additional reports of persons hospitalized with influenza-associated illness were received: 1 with Type A (H1N1) 2009, 8 with Type A (H3N2), 16 with Type A unspecified, and 1 with Type B. There has been one fatal infection attributed to Type A (H1N1) novel, a resident of New Haven County aged 50-59 years.

A total of 615 positive influenza test reports have been received including 554 Type A, 22 Type B and 39 of unknown Type. Of the 318 Type A viruses with known subtype 93% were A (H3N2) and 7% were A (H1N1) 2009.

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 2 (Widespread)

Week 2: Widespread
The percentage of total emergency department visits for the ?fever/flu? syndrome category has been gradually increasing statewide and is currently most evident in southwestern Connecticut.

The percentage of outpatient visits with influenza-like illness has gradually increased but remains low at less than 2% of all patient visits.

The number of weekly hospital pneumonia admissions has increased significantly over the past 3 weeks.

The number persons hospitalized with influenza-associated illness has been
increasing. A total of 145 have been reported: 2 with Type A (H1N1) novel, 95 with Type A (H3N2), 41 with Type A unspecified, and 7 with Type B.

A total of 699 positive influenza test reports have been received including: 625 Type A, 33 Type B and 41 of unknown Type. Of the 346 Type A viruses with known subtype 93% were A (H3N2) and 7% were A (H1N1) novel.

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 3 (Three New Deaths)

Week 3: Widespread
3 new deaths; total 4

• The percentage of total emergency department visits for the “fever/flu” syndrome category gradually increased during December and is currently approximately 6% statewide.
• The percentage of outpatient visits with influenza-like illness has gradually increased but remains less than 2% of all patient visits.
• The number of weekly hospital pneumonia admissions increased in late December and currently accounts for approximately 5% of all admissions.
• A total of 231 persons hospitalized with influenza-associated illness have been reported and include: 6 with Type A (H1N1) novel, 128 with Type A (H3N2), 83 with Type A unspecified, and 14 with Type B. There have been 4 fatal infections and include residents of Litchfield, New Haven (2) and Windham counties; the patients were all over 50 years.
• A total of 906 positive influenza test reports have been received including: 832 Type A, 45 Type B and 29 of unknown Type. Of the 437 Type A viruses with known subtype 90% were A (H3N2) and 10% were A (H1N1) novel.

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 4 (Widespread)

Week 4: Widespread

ILI: 2%
ED ILI: 6%
P&I admissions: ~5%

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 5 (Two New Deaths; Total 6)

Week 5:
2 new death; total 6(all over age 50)

• ED ILI: 6% statewide
• ILI: less than 2%
• The number of weekly hospital pneumonia admissions decreased in January and currently accounts for approximately 5% of all admissions.
• A total of 330 persons hospitalized with influenza-associated illness have been reported and include: 161 with Type A (H3N2), 10 with Type A (H1N1) novel, 139 with Type A unspecified, and 20 with Type B (Figure 4).
• There have been 6 fatal influenza-associated infections among residents of Fairfield, Litchfield, New Haven (3) and Windham counties including 1 patient with Type A (H3N2), 1 with Type A (H1N1) novel, 3 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 85 years).

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 6 (No New Deaths; Total 6)

Week 6: Widespread
No new deaths; total 6
ILI: 2%
ED ILI: 6%

• The number of weekly hospital pneumonia admissions has increased over the past 2 weeks after a decrease in January and currently accounts for approximately 5% of all admission.
• A total of 398 persons hospitalized with influenza-associated illness have been reported and include: 187 with Type A (H3N2), 17 with Type A (H1N1) novel, 170 with Type A unspecified, 22 with Type B, and 2 with unknown type.
• There have been 6 fatal influenza-associated infections among residents of Fairfield, Litchfield, New Haven (3) and Windham counties including 1 patient with Type A (H3N2), 1 with Type A (H1N1) novel, 3 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 85 years).
• A total of 2168 positive influenza test reports have been received including: 1914 Type A, 113 Type B and 141 of unknown type. Of the 744 Type A viruses with known subtype 84% were A (H3N2) and 16% were A (H1N1) novel.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 7 (No New Deaths; Total 6)

Week 7: Widespread
No new deaths; total 6
Hospital pneumonia admissions: 5%
A total of 398 persons hospitalized with influenza-associated illness have been reported
ILI: <2%
ED ILI: 7%

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[JimO]

Re: Connecticut 2010-2011 Season: Week 8 (Two New Deaths; Total 8)

Week 8: Widespread
Two new deaths; total 8
Hospital pneumonia admissions: ~5&#37;
A total of 525 (up from 398 in Week 6) persons hospitalized with influenza-associated illness have been reported
ILI: ~2%
ED ILI: ~7%
Of Type A isolates tested, 78% were H3N2 and 22% were pH1N1

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 9 (One New Death; Total 9)

Week 9:
1 new death; total 9 (A total of 9 fatal influenza-associated infections have been reported among NewHaven (4), Fairfield (2), Hartford (1), Litchfield (1), and Windham (1) counties including 2 patients with Type A (H3N2), 2 with Type A (H1N1) novel, 4 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 83 years).

A total of 3,023 positive influenza test reports have been received including: 2,593 Type A, 205 Type B and 225 of unknown type. Of the 1,239 Type A viruses with known subtype 75% were A (H3N2) and 25% were A (H1N1) novel.

ILI: 2%
ED ILI: 7%
Hospitalization admissions for pneumonia (averaged over last 5 weeks): 5%

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 10 (Four New Deaths; Total 13)

Week 10:
4 new deaths; total 13

• A total of 680 persons hospitalized with influenza-associated illness have been reported and include: 314 with Type A (H3N2), 93 with Type A (H1N1) novel, 231 with Type A unspecified, and 42 with Type B.
• There have been 13 fatal influenza-associated infections among residents of Fairfield (4), New Haven (4), Hartford (3), Litchfield (1), and Windham (1) counties including 4 patients with Type A (H1N1), 2 with Type A (H3N2) novel, 6 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 83 years).
• A total of 3,336 positive influenza test reports have been received including: 2,839 Type A, 247 Type B and 250 of unknown type. Of the 1,362 Type A viruses with known subtype 74&#37; were A (H3N2) and 26% were A (H1N1) novel.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Week 11 (One New Death; Total 14)

Week 11:
1 new death; total 14

? The percentage of total emergency department visits attributed to the ?fever/flu? syndrome category has remained steady during the past 4 weeks at 6-7% statewide; the percentage is slightly higher in eastern and, during the past week, in north-central Connecticut with 8-9% of visits.
? The percentage of outpatient visits with influenza-like illness has decreased during the past 3 weeks accounting for approximately 1.5% of all patient visits.
? The number of weekly hospital pneumonia admissions has ranged from 384 to 426 over the past 4 weeks accounting for approximately 5% of all admissions.
? A total of 729 persons hospitalized with influenza-associated illness have been reported and include: 332 with Type A (H3N2), 103 with Type A (H1N1) novel, 243 with Type A unspecified, and 51 with Type B.
? There have been 14 fatal influenza-associated infections among residents of Fairfield (4), Hartford (4), New Haven (4), Litchfield (1), and Windham (1) counties including 5 patients with Type A (H3N2), 4 with Type A (H1N1) novel, 4 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 84 years).
? A total of 3,457 positive influenza test reports have been received including: 2,931 Type A, 267 Type B and 259 of unknown type. Of the 1,429 Type A viruses with known subtype 73% were A (H3N2) and 27% were A (H1N1) novel.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Weeks 1-12 (No New Deaths; Total 14)

Week 12;
No new deaths; total 14

• The percentage of total emergency department visits attributed to the “fever/flu” syndrome category has decreased statewide over the past 3 weeks and currently is approximately 6&#37;.
• The percentage of outpatient visits with influenza-like illness has decreased during the past 4 weeks accounting for approximately 1% of all patient visits.
• The number of weekly hospital pneumonia admissions has ranged from 388 to 423 over the past 4 weeks accounting for approximately 5% of all admissions.
• A total of 764 persons hospitalized with influenza-associated illness have been reported and include: 350 with Type A (H3N2), 114 with Type A (H1N1) novel, 248 with Type A unspecified, and 52 with Type B.
• A total of 3,626 positive influenza test reports have been received including: 3061 Type A, 294 Type B and 271 of unknown type. Of the 1,488 Type A viruses with known subtype 72% were A (H3N2) and 28% were A (H1N1) novel.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Weeks 1-13 (No New Deaths; Total 14)

Week 13: Widespread
No new deaths; total 14

ILI: <1%
ED ILI: 6%
Hospitalizations for pneumonia down

A total of 812 persons hospitalized with influenza-associated illness have been reported and include: 373 with Type A (H3N2), 127 with Type A (H1N1) novel, 250 with Type A unspecified, and 62 with Type B.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Weeks 1-14 (No New Deaths; Total 14)

Week 14:
No new deaths; total 14
The percentage of total emergency department visits attributed to the ?fever/flu? syndrome category has decreased over the past 4 weeks statewide and currently is approximately 5%.
The percentage of outpatient visits with influenza-like illness has decreased over the past 4 weeks and currently accounts for less than 0.5% of all patient visits
.
The number of weekly hospital pneumonia admissions has decreased from 436 to 365 over the past 2 weeks and currently accounts for 4.7% of all admissions.
A total of 837 persons hospitalized with influenza-associated illness have been reported and include: 380 with Type A (H3N2), 132 with Type A (H1N1) novel, 257 with Type A unspecified, and 68 with Type B (Figure 4).

A total of 4,034 positive influenza test reports have been received including: 3,298 Type A, 434 Type B and 302 of unknown type. Of the 1,595 Type A viruses with known subtype 71% were A (H3N2) and 29% were A (H1N1) novel. The percentage of circulating Type B influenza has steadily increased in recent weeks.

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788

[Missouriwatcher]

Re: Connecticut 2010-2011 Season: Weeks 1-15 (Two New Deaths; Total 16)

Week 15:
2 new deaths; total 16 (7 patients with Type A (H3N2), 4 with Type A (H1N1) novel, 4 with Type A unspecified, and 1 with Type B; the patients were all over 50 years of age (median age = 84 years)

The percentage of circulating Type B influenza has steadily increased in recent weeks.
ILI: 0.5%
ED ILI: 5%

http://www.ct.gov/dph/lib/dph/infectious_diseases/flu/stats/flu_weekly_update.pdf

http://www.ct.gov/dph/cwp/view.asp?a=3136&q=410788