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Colorado 2011-2012 Flu Season: Weeks 40-21 (Final Report)

M

Missouriwatcher

Editor, Senior Moderator
Week 40: No Activity
? No influenza-associated hospitalizations have been confirmed since the official beginning of
the 2011-12 influenza season. The confirmed case of Influenza A (H3) previously mentioned
in a Mesa County press release was travel-related and will not be included in our 2011/12 case
counts due to the diagnosis date being prior to the official surveillance period.
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area
remained similar to summer ?baseline? levels at less than 1.0%. Influenza-like illness reported
by Mesa County was near 0%.
? There were no PCR-confirmed specimens tested for the period 10/2-10/8, by the state
laboratory.
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-41 (No Activity)

Re: Colorado 2011-2012 Flu Season: Weeks 40-41 (No Activity)

Week 41: No Activity
? No confirmed influenza-associated hospitalizations were reported.
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County was near 0%.
? There were no PCR-confirmed specimens tested for the period 10/9-10/15, by the state laboratory.
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-42 (Minimal Activity)

Re: Colorado 2011-2012 Flu Season: Weeks 40-42 (Minimal Activity)

Week 42: Minimal Activity
? No confirmed influenza-associated hospitalizations were reported.
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County was near 0%.
? There was one PCR-confirmed specimen tested for the period 10/16-10/22, by the state laboratory. This specimen was type A (H3) from an outpatient hospital visit.
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-43 (Minimal Activity)

Re: Colorado 2011-2012 Flu Season: Weeks 40-43 (Minimal Activity)

Week 43: Minimal Activity
For the week ending October 29, there was minimal influenza activity in the state.
? No confirmed influenza-associated hospitalizations were reported.
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County was near 0%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Among 18 reporting sentinel labs, less than 1.0% of 225 specimens tested positive for influenza.
? There were two reported PCR-confirmed specimens tested for the period 10/23-10/29, by the state laboratory. Both specimens were type A (H3) from outpatient hospital visits.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-44 (Low)

Re: Colorado 2011-2012 Flu Season: Weeks 40-44 (Low)

Week 44: Low
• The first influenza-associated hospitalization for the 2011-2012 influenza season was reported from Denver County. The patient was diagnosed with influenza during the week ending 10/29.
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County remained near 0%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (18/18 reporting) tested 226 specimens and all were negative.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• There was one additional specimen (out of 4 submitted) that tested positive for influenza by PCR at the state laboratory, bringing the cumulative total to 6. Of these, all 6 (100%) were type A and subtyped as H3. Although specimens are being submitted to the state laboratory for PCR testing in small numbers, the majority are still not confirming by PCR.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-45

Re: Colorado 2011-2012 Flu Season: Weeks 40-45

Week 45: Slight increase
? One additional hospitalization was reported during the week ending 11/12, bringing the cumulative total to two (one each from Denver County and El Paso County).
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County remained near 0%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 209 specimens and 2.4% were positive, compared to 0% positivity the previous week.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? There were five additional specimens (out of 7 submitted) that tested positive for influenza by PCR at the state laboratory, bringing the cumulative total of confirmed positives to 11 (out of 30 submitted). Of these, all 11 (100%) were type A and subtyped as H3.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-46

Re: Colorado 2011-2012 Flu Season: Weeks 40-46

Week 46:
? No additional hospitalizations were reported during the week ending 11/19. The cumulative total stands at two (one each from Denver County and El Paso County).
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County was 0.2%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 245 specimens and 1.6% were positive.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? Two additional specimens tested positive for influenza by PCR at the state laboratory during the previous week and were reported during the most recent week. The cumulative total of confirmed positives is 13 (out of 37 submitted). Of these, all 13 (100%) were type A and subtyped as H3. http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-47

Re: Colorado 2011-2012 Flu Season: Weeks 40-47

Week 47:
For the week ending November 26th, influenza activity remained low but slightly increased when compared to the previous week.
? Two additional hospitalizations were reported during the week ending 11/26; however, both patients were diagnosed with influenza during the previous week (week ending 11/19). The cumulative total of hospitalizations is 4.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0%. Influenza-like illness reported by Mesa County was near 0%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 249 specimens and 2.8% were positive, compared to 1.6% the previous week.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? Six additional specimens (out of 8 submitted) tested positive for influenza by PCR at the state laboratory, bringing the cumulative total of confirmed positives to 22 (out of 49 submitted). Of these, all 22 (100%) were type A and subtyped as H3.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf

To view the weekly Colorado Flu (surveillance) Report (available as of 11/30), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-49 (Local)

Re: Colorado 2011-2012 Flu Season: Weeks 40-49 (Local)

Week 49: Local Activity
For the week ending December 10th, influenza activity remained low, but showed increased activity in El Paso County.
? Three additional hospitalizations were reported; one during the previous week (week ending 12/3) and two during the most recent week. The cumulative total of hospitalizations is 11.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%). Influenza-like illness reported by Mesa County was 0.2%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 253 specimens and 5.1% were positive (compared to 0.4% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? During the last two weeks, 11 additional specimens (out of 14 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 39 specimens (out of 72 submitted) have confirmed positive for influenza A. Of these, 37 (95%) have subtyped as H3, and two (5%) as 2009 H1N1. No specimens have confirmed for influenza B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
? No outbreaks were reported.
http://www.cdphe.state.co.us/dc/Influenza/index.html
To view the weekly Colorado Flu (surveillance) Report (available as of 12/13), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-51 (Regional)

Re: Colorado 2011-2012 Flu Season: Weeks 40-51 (Regional)

Week 51: Regional Activity
For the week ending December 24th, influenza activity remained low but increased. Geographically it appears to be mostly along the Front Range, based primarily on our sentinel hospital lab data.

Eleven additional hospitalizations were reported bringing the cumulative total to 28 hospitalizations from 9 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf

Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%).
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf

Sentinel hospital labs (15/18 reporting) tested 324 specimens and provisionally 11.4% were positive (compared to 6.7% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf

During the last two weeks, 40 additional specimens (out of 45 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 112 specimens (out of 156 submitted) have confirmed positive for influenza. Of which, 108 (96%) have subtyped as H3, 2 (2%) as 2009 H1N1, and 2 (2%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf

No outbreaks were reported.

To view the weekly Colorado Flu (surveillance) Report (available as of 12/28), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-51 (Regional)

Re: Colorado 2011-2012 Flu Season: Weeks 40-51 (Regional)

Here is the %ILI chart from sentinal providers. The percent positive has risen steadily over the past three weeks.

Week 51 ILI CO.png
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-52

Re: Colorado 2011-2012 Flu Season: Weeks 40-52

Week 52:
? There were 13 additional hospitalizations reported bringing the cumulative total to 41 hospitalizations from 10 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%). Influenza-like illness reported by Mesa County was 0.2%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (15/18 reporting) tested 320 specimens and provisionally 5% were positive (compared to 10.5% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? There were 49 additional specimens (out of 53 submitted) that tested positive for influenza by PCR at the state laboratory. Cumulatively, 160 (97%) of 165 PCR positive specimens have subtyped as H3, 3 (2%) as 2009 H1N1, and 2 (1%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
? No outbreaks were reported.

To view the weekly Colorado Flu (surveillance) Report (available as of 1/4/12), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-1

Re: Colorado 2011-2012 Flu Season: Weeks 40-1

Week 1:
For the week ending January 7th, influenza activity remained low with most activity along the Front Range.
? There were 7 additional hospitalizations reported, one from the previous week (week ending 12/31/11) and six from the most recent week. The cumulative total is 48 hospitalizations from 12 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%). Influenza-like illness reported by Mesa County was 0.1%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (15/18 reporting) tested 364 specimens and provisionally 8.2% were positive (compared to 5.7% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? There were 23 additional specimens (out of 26 submitted) that tested positive for influenza by PCR at the state laboratory. Cumulatively, 189 (96%) of 196 PCR positive specimens have subtyped as H3, 5 (3%) as 2009 H1N1, and 2 (1%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
? There was one outbreak reported in a LTCF from Adams County.

To view the weekly Colorado Flu (surveillance) Report (available as of 1/11/12), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-2

Re: Colorado 2011-2012 Flu Season: Weeks 40-2

Week 2:
• There were 9 additional hospitalizations reported during the most recent week, bringing the cumulative total to 63 hospitalizations from 13 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%). Influenza-like illness reported by Mesa County was 0%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (18/18 reporting) tested 403 specimens and 5.2% were positive (compared to 8.4% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• There were 22 additional specimens (out of 27 submitted) that tested positive for influenza by PCR at the state laboratory. Cumulatively, 220 (96%) of 228 PCR positive specimens have subtyped as H3, 6 (3%) as 2009 H1N1, and 2 (1%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
• There was one outbreak reported in a LTCF from Larimer County.
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf
view the weekly Colorado Flu (surveillance) Report (available as of 1/18/12), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-3

Re: Colorado 2011-2012 Flu Season: Weeks 40-3

Week 3:
Most of the activity remained along the Front Range.
• There were 12 additional hospitalizations reported during the most recent week, bringing the cumulative total to 76 hospitalizations from 14 counties. (Majority <6 months of age)
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained less than 1.0% (0.8%). Influenza-like illness reported by Mesa County was 0.1%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (15/18 reporting) tested 350 specimens and provisionally 7.7% were positive (compared to 5.2% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• There were 37 additional specimens (out of 39 submitted) that tested positive for influenza by PCR at the state laboratory. Cumulatively, 268 (96%) of 278 PCR positive specimens have subtyped as H3, 8 (3%) as 2009 H1N1, and 2 (1%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
• There was one outbreak reported in a LTCF from El Paso County.
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf

To view the weekly Colorado Flu (surveillance) Report (available as of 1/26/12), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-4

Re: Colorado 2011-2012 Flu Season: Weeks 40-4

Week 4:
• There were 10 additional hospitalizations reported during the most recent week, bringing the cumulative total to 86 hospitalizations from 16 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area increased from 0.8% to 1.2%. Influenza-like illness reported by Mesa County increased from 0.1% to 0.2%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (18/18 reporting) tested 490 specimens and provisionally 9.4% were positive (compared to 8.1% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• For the most recent week, 23 additional specimens (out of 24 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 297 (96%) of 308 PCR positive specimens have subtyped as H3, 9 (3%) as 2009 H1N1, and 2 (1%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
• No outbreaks were reported during the most recent week.
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-5

Re: Colorado 2011-2012 Flu Season: Weeks 40-5

Week 5:
? There were 23 additional hospitalizations reported, eight from the previous week (week ending 1/28/12) and 15 from the most recent week. The cumulative total of hospitalizations is 109 from 21 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained at 1.2%. Influenza-like illness reported by Mesa County was 0.2%.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 530 specimens and 10.2% were positive (compared to 9.4% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? For the most recent week, 48 additional specimens (out of 50 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 360 (96.5%) of 373 PCR positive specimens have subtyped as H3, 11 (3%) as 2009 H1N1, and 2 (0.5%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
? No outbreaks were reported during the most recent week.
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-6

Re: Colorado 2011-2012 Flu Season: Weeks 40-6

Week 6:
? There were 28 additional hospitalizations reported, 16 from the previous week (week ending 2/4/12) and 12 from the most recent week. The cumulative total of hospitalizations is 137 from 25 counties.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
? Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained near 1.2%. Influenza-like illness reported by Mesa County remained at 0.2%, but has been 0.5-0.7 in the 5-24 years age group for the past 3 weeks.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
? Sentinel hospital labs (18/18 reporting) tested 547 specimens and 10.4% were positive (compared to 10.2% the previous week). Of these, only 3.5% (2 of the 57 positives) were type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
? For the most recent week, 12 additional specimens (out of 14 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 376 (96%) of 390 PCR positive specimens have subtyped as H3, 12 (3%) as 2009 H1N1, and 2 (0.5%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
? Two outbreaks were reported (one each from Fremont and Garfield County), both with onset dates during the previous week (week ending 2/4/12).
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf
To view the weekly Colorado Flu (surveillance) Report (available as of 2/15/12), go to:
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-7

Re: Colorado 2011-2012 Flu Season: Weeks 40-7

Week 7:
There are indications of some influenza activity in most parts of the state. Influenza A/H3N2 continues to be the predominant circulating strain.

• There were 31 additional hospitalizations reported, 12 from the previous week (week ending 2/11/12) and 19 from the most recent week. The cumulative total of hospitalizations is 168 from 28 counties. Due to reporting delays, it is expected that the number of influenza-associated hospitalizations for the week ending 2/18 will increase as cases diagnosed between 2/12– 2/18 are subsequentlyreported.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area remained near 1.2%, but has been above 2.0% in the 5-24 year age for 4 weeks. Influenza-like illness reported by Mesa County increased from 0.2% to 0.4%, and increased 0.9% in the 5-24 years age group.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (17/18 reporting) tested 641 specimens and provisionally 12.6% were positive (compared to 10.4% the previous week).
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• For the most recent week, 15 additional specimens (out of 18 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 392 (96%) of 407 PCR positive specimens have subtyped as H3, 13 (3%) as 2009 H1N1, and 2 (0.5%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
• No additional outbreaks were reported during the most recent week.
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf

http://www.cdphe.state.co.us/dc/Influenza/index.html
 
Re: Colorado 2011-2012 Flu Season: Weeks 40-8 (Widespread)

Re: Colorado 2011-2012 Flu Season: Weeks 40-8 (Widespread)

Week 8: Widespread
• There were 35 additional hospitalizations reported, 18 from the previous week (week ending 2/18/12) and 17 from the most recent week. The cumulative total of hospitalizations is 203 from 31 counties. Due to reporting delays, it is expected that the number of influenza-associated hospitalizations for the week ending 2/25 will increase as cases diagnosed between 2/19– 2/25 are subsequently reported.
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospital_by_county.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12Hospitalized_ by_age.pdf
• Influenza-Like Illness reported by Kaiser Permanente for the Denver-Boulder metropolitan area increased from 1.2% to 1.5%, but has been above 2.0% in the 5-24 year age for 5 weeks. Influenza-like illness reported by Mesa County increased from 0.4% to 0.7%, and increased to 1.5% in the 5-24 years age group.
http://www.cdphe.state.co.us/dc/Influenza/11_12KP_ILI.pdf
http://www.cdphe.state.co.us/dc/Influenza/11_12MESA_ILI.pdf
• Sentinel hospital labs (17/18 reporting) tested 838 specimens and provisionally 15.5% were positive (compared to 14.4% the previous week). Out of the 125 positives specimens, five (4%) were type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12Sentinel_Labs.pdf
• For the most recent week, 21 additional specimens (out of 23 submitted) tested positive for influenza by PCR at the state laboratory. Cumulatively, 417 (96%) of 433 PCR positive specimens have subtyped as H3, 14 (3%) as 2009 H1N1, and 2 (0.5%) have confirmed as type B.
http://www.cdphe.state.co.us/dc/Influenza/11_12PCR_results.pdf
• Two outbreaks were reported (one each from Larimer and Denver County), both with onset dates during previous weeks (one from week ending 2/11/12 and one from week ending 2/18/12).
http://www.cdphe.state.co.us/dc/Influenza/11_12_outbreak.pdf
http://www.cdphe.state.co.us/dc/Influenza/index.html
 
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