Colorado 2010-2011 Season: Weeks 40-20 (Final Report)

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-3 (One New Death)

Week 3:
1 new death; total 4
28 new hospitalizations; total 176

Synopsis: Influenza activity continued to increase and spread geographically. Influenza A/H3N2 continues to be the predominant circulating strain, though 2009 H1N1 and influenza B viruses appear to be circulating in increasing amounts.
• For the week ending 01/22, there were 28 new influenza-associated hospitalizations reported along with 10 additional hospitalizations for the previous week, bringing the cumulative total to 176 hospitalizations from 26 counties.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder metropolitan area increased from 1.0 to 1.2%. Influenza-like illness reported by Mesa County remained low at 0.4%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (17/17 reporting) tested 578 specimens and 16.4% were positive (80% for Type A) compared to 14.3% the previous week. During the past two weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates: H3N2 – 64%; 2009 H1N1 – 29%; Type B – 7%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

• Brush (Morgan County) reported an influenza B outbreak in a middle school. There were no LTCF outbreaks reported in the past week. Cumulatively, there have been five LTCF outbreaks reported from 3 counties; Denver (3), Baca (1) and Yuma (1).
• A total of 4 deaths (1 adolescent and 3 adults) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 01/26/11), go to: http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-4 (One New Pediatric Death)

Week 4:
• A total of 5 deaths (2 pediatric and 3 adults) have been reported. The second pediatric death,
reported by El Paso County, was an adolescent with a significant underlying medical history.

Influenza activity continued to increase. Influenza A/H3N2 continues to be the
predominant circulating strain, although 2009 H1N1 is a close second based on subtyping of
submitted specimens to the CDPHE laboratory.
• For the week ending 01/29, there were 43 new influenza-associated hospitalizations reported
along with 26 additional hospitalizations for the previous week, bringing the cumulative total to
247 hospitalizations from 27 counties.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder
metropolitan area increased to 2.0%. Influenza-like illness reported by Mesa County increased
from 0.4% to 0.7%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (16/17 reporting) tested 719 specimens and 19.1% were positive
(79% for Type A) compared to 16.4% the previous week. During the past two weeks, PCR
typing and subtyping of submitted specimens to the state laboratory indicates: H3N2 – 50%;
2009 H1N1 – 40%; Type B – 10%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

To view the weekly Colorado Flu (surveillance) Report (available as of 02/2/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[JimO]

Re: Colorado 2010-2011 Season: Weeks 40-4 (One New Pediatric Death)

Here's the chart from the Week 4 report.

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-5 (One New Death; Total 6)

Week 5:
1 new death; total 6 (2 pediatric, 4 adult)
A total of 14 outbreaks (11 LTCF and 3 school) have been reported
• A total of 340 hospitalizations from 33 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-like Illness levels reported by Kaiser Permanente for the Denver-Boulder
metropolitan area showed a sharp increase during the week ending January 22nd from 1.2% to
2.0%, which continued to steeply increase to 2.7% during most current week. Influenza-like
Illness levels reported by Mesa County also increased steeply from 0.7% to 1.2%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (15/17 reporting) saw an increase in the total number of positive
influenza tests; a total of 886 specimens were tested and 22.4% were positive (76% for Type
A) compared to 19.4% the previous week. During the past two weeks, PCR typing and
subtyping of submitted specimens (primarily from hospitalized patients) to the state laboratory
indicates: H3N2 – 46%; 2009 H1N1 – 39%; Type B – 15%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

To view the weekly Colorado Flu (surveillance) Report (available as of 02/10/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[JimO]

Re: Colorado 2010-2011 Season: Weeks 40-5 (One New Death; Total 6)

Missouriwatcher has provided links to the Colorado Week 5 charts, so I don't want to post them all here. The links above take you directly to the charts. I did, however, want to point out that the hospitalization chart (first link) indicates that H3N2 is decreasing (assuming many of the unsubtyped A samples are pH1N1), pH1N1 is increasing along with Influenza B. This pattern seems to be happening in a lot of places, except in places like Alabama and Louisiana where Influenza B has been dominant.

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-6 (One New Death; Total 7)

Week 6:
1 new death; total 7
2009 H1N1 most prevalent

Influenza activity remained high, with several indicators consistent with peak activity.
? Through the week ending February 12th, a cumulative total to 425 hospitalizations has been
reported from 36 counties. Due to delays in reporting, it is difficult to determine the peak in
reported hospitalizations until at least two weeks later.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder
metropolitan area increased slightly from 2.7% to 2.8%. Influenza-like Illness levels reported
by Mesa County increased substantially from 1.2% to 1.9%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (17/17 reporting) tested 1135 specimens and 22.7% were positive
(69% for Type A) compared to 23.3% the previous week. During the past two weeks, PCR
typing and subtyping of submitted specimens (primarily from hospitalized patients) to the state
laboratory indicates: H3N2 ? 41%; 2009 H1N1 ? 45%; Type B ? 14%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A total of 18 outbreaks (17 LTCF and 1 detention center) have been reported.
? A total of 7 deaths (2 pediatric and 5 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 02/16/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-7 (No New Deaths; Total 7)

Week 7:
No new deaths; total 7

• Through the week ending February 19th, a cumulative total to 523 hospitalizations has been
reported from 39 counties. Overall hospitalizations appear to have peaked the week ending
2/5, however some regions might not have peaked yet.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder
metropolitan area increased from 2.8% to 3.0%. Influenza-like Illness levels reported by Mesa
County increased substantially from 1.9% to 3.8%. For both, ILI levels are highest in 5-24 year
age group.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (17/17 reporting) tested 1300 specimens and 24.1% were positive
(59% of positives were Type A) compared to 22.7% the previous week. During the past two
weeks, PCR typing and subtyping of submitted specimens (primarily from hospitalized
patients) to the state laboratory indicates: 2009 H1N1 – 48%; H3N2 – 34%; Type B – 18%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

• A total of 24 outbreaks (23 LTCF and 1 detention center) have been reported.
• A total of 7 deaths (2 pediatric and 5 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 02/23/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-8 (Two New Deaths; Total 9)

Week 8:
2 new deaths; total 9 (2 pediatric and 7 adult)

• Through the week ending February 26th, a cumulative total of 660 hospitalizations have been reported from 43 counties. Due to delays in reporting, it is difficult to clearly determine the peak in reported hospitalizations until at least two weeks later.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder metropolitan area decreased slightly from 3.0% to 2.9%. Influenza-like Illness levels reported by Mesa County decreased considerably from 3.8% to 2.7%. For both, the peaks appear to be the week ending Feb. 19.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (17/17 reporting) tested 1244 specimens and 18.4% were positive(45% of positives were Type B) compared to 24.1% the previous week. Sentinel lab positivity peaked during the weeks ending Feb. 5 – Feb. 19. During the past two weeks, PCR typing and subtyping of submitted specimens (primarily from hospitalized patients) to the state laboratory indicates: H3N2 – 41.5%; 2009 H1N1 – 35.6%; Type B – 22.9%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

• As of 2/26, a total of 25 outbreaks (24 LTCF and 1 detention center) had been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 03/03/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-9 (No New Deaths; Total 9)

Week 9:
No new deaths; total 9

Influenza activity remains moderately elevated, but is decreasing.
? A cumulative total of 759 hospitalizations from 44 counties have been reported. Influenza associated hospitalizations appear to have had a broad peak between the weeks ending Feb 5 ? Feb 26.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels reported by Kaiser Permanente for the Denver-Boulder metropolitan area continued to decrease from 2.9% to 2.6%. Influenza-like Illness levels reported by Mesa County decreased from 2.7% to 2.5%. For both, the peak was during the week ending Feb. 19.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (16/17 reporting) tested 1150 specimens and 13.8% were positive (51% of positives were Type B) compared to 18.4% the previous week. Sentinel lab positivity peaked during the week ending Feb. 19. During the past two weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates: 2009 H1N1 ? 40.0%;
H3N2 ? 37.5%; Type B ? 22.5%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A total of 30 outbreaks (29 LTCF and 1 detention center) have been reported.
? A total of 9 deaths (2 pediatric and 7 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 03/08/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-10 (No New Deaths; Total 9)

Week 10:
No new deaths; total 9

• A cumulative total of 842 hospitalizations from 47 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

• Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area are not available for the most recent week. Influenza-like Illness levels reported by Mesa County decreased from 2.5% to 1.1%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

• Sentinel hospital labs (16/17 reporting) tested 944 specimens and 10.5% were positive(49% of positives were Type B) compared to 13.5% the previous week. During the past two weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates:
H3N2 – 43.1%; 2009 H1N1 – 27.5%; Type B – 29.4%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

• A total of 31 outbreaks (30 LTCF and 1 detention center) have been reported.
• A total of 9 deaths (2 pediatric and 7 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 03/08/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-11 (No New Deaths; Total 9)

Week 11:
No new deaths; total 9

? A cumulative total of 892 hospitalizations from 48 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area are not available for the most recent week. Influenza-like Illness levels reported by Mesa County were slightly higher than the previous week (1.4% vs. 1.1%).

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (15/17 reporting) tested 708 specimens and 12.3% were positive(47% of positives were Type B) compared to 10.5% the previous week. During the past two weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates: H3N2 ? 46%; 2009 H1N1 ? 16%; Type B ? 38%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A total of 32 outbreaks (31 LTCF and 1 detention center) have been reported.
? A total of 9 deaths (2 pediatric and 7 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 03/23/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-12 (No New Deaths; Total 9)

Week 12:
No new deaths; total 9

? A cumulative total of 892 hospitalizations from 48 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area are not available for the most recent week. Influenza-like Illness levels reported by Mesa County were slightly higher than the previous week (1.4% vs. 1.1%).

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (15/17 reporting) tested 708 specimens and 12.3% were positive (47% of positives were Type B) compared to 10.5% the previous week. During the past two weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates:
H3N2 ? 46%; 2009 H1N1 ? 16%; Type B ? 38%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A total of 32 outbreaks (31 LTCF and 1 detention center) have been reported.
? A total of 9 deaths (2 pediatric and 7 adult) have been reported.

http://www.cdphe.state.co.us/dc/Influenza/Colorado%20Flu%20Report.pdf

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-13 (No New Deaths; Total 9)

Week 13:
No new deaths; total 9

? A cumulative total of 941 hospitalizations from 48 counties have been reported. All reported
hospitalizations during the past week were from Front Range counties.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area
have continued to decrease over the last four weeks with 1.4% reported for the most recent
week. Influenza-like Illness levels reported by Mesa County decreased considerably from
1.4% to 0.5%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (16/17 reporting) tested 427 specimens and 6% were positive
(27% of positives were Type B) compared to 12.3% the previous week. During the past two
weeks, PCR typing and subtyping of submitted specimens to the state laboratory indicates:
H3N2 ? 42.4%; 2009 H1N1 ? 24.2%; Type B ? 33.3%.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? No additional outbreaks were reported during the most recent week. A cumulative total of 32
outbreaks (31 LTCF and 1 detention center) have been reported.
? A cumulative total of 9 deaths (2 pediatric and 7 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 03/31/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-14 (One New Death; Total 10)

Week 14:
1 new death; total 10

Influenza activity remained at a low level and similar to the previous week.
? A cumulative total of 988 hospitalizations from 48 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area
continued to decrease from 0.96% to 0.88%. Influenza-like Illness levels reported by Mesa
County remained low at 0.2%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (16/17 reporting) tested 349 specimens and 5.2% were positive
(39% of positives were Type B) compared to 4.4% the previous week. During the past 2
weeks, the majority of specimens being submitted to the state laboratory are not confirming by
PCR.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A cumulative total of 37 outbreaks (35 LTCF and 2 detention center) have been reported.
? A cumulative total of 10 deaths (2 pediatric and 8 adult) have been reported.
To view the weekly Colorado Flu (surveillance) Report (available as of 04/13/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html

[Missouriwatcher]

Re: Colorado 2010-2011 Season: Weeks 40-15 (One New Death; Total 11)

Week 15:
1 new death; total 11 (2 pediatric and 9 adult)

Influenza activity remained at a low level.
? A cumulative total of 997 hospitalizations from 48 counties have been reported.

http://www.cdphe.state.co.us/dc/Influenza/10_11Hospital.pdf

? Influenza-Like Illness levels for Kaiser Permanente for the Denver-Boulder metropolitan area continued to decrease from 0.88% to 0.79%. Influenza-like Illness levels reported by Mesa County remained at 0.2%.

http://www.cdphe.state.co.us/dc/Influenza/10_11KP_ILI.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11MESA_ILI.pdf

? Sentinel hospital labs (16/17 reporting) tested 262 specimens and 3.4% were positive (33% of positives were Type B) compared to 4.4% the previous week. During the past 3 weeks, the majority of specimens being submitted to the state laboratory are not confirming by PCR.

http://www.cdphe.state.co.us/dc/Influenza/10_11Sentinel_Labs.pdf

http://www.cdphe.state.co.us/dc/Influenza/10_11PCR_results.pdf

? A cumulative total of 37 outbreaks (35 LTCF and 2 detention center) have been reported.

To view the weekly Colorado Flu (surveillance) Report (available as of 04/20/11), go to:

http://www.cdphe.state.co.us/dc/Influenza/index.html