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Oklahoma 2010-2011 Flu Season: Weeks 40-35 (No New Deaths; total 26)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-4 (One Pediatric Death; Influenza B)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-4 (One Pediatric Death; Influenza B)

In addition to the above, the OK update reported the following:

  • 72.5% (392/540) of patients meeting the ILI criteria were under 24 years of age.
  • 110 of 117 (94.0%) specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza.
  • Fifty-three percent of hospitalizations have occurred among children 18 years of age or less.
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-5 (Three New Deaths including One Pediatric Death; Total 8)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-5 (Three New Deaths including One Pediatric Death; Total 8)

Week 5:
3 new deaths; total 8
139 hospitalizations; total 597

* ILI: 12.8%
* The percentage of patients meeting the ILI criteria exceeded the 3.5% baseline in all eight regions.
* 69.3% of patients meeting the ILI criteria were under 24 years of age.
* 25.5% rapid influenza tests performed by sentinel laboratories were positive; 128 (58.7%) indicated infection with type A viruses and 90 (41.3%) detected type B influenza.
* 91.7% specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza.

* Fifty percent of hospitalizations have occurred among children 18 years of age or less.
* Three influenza-associated deaths were reported this week. One death in each age group, 0-18 years, 19-64 years, and over 65 years of age, from Wagoner, Caddo and Tulsa counties respectively. All deaths had preexisting conditions and/or complications from secondary bacterial infection. A total of 8 deaths have reported this season.
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-5 (Three New Deaths including One Pediatric Death; Total 8)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-5 (Three New Deaths including One Pediatric Death; Total 8)

http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html

High flu numbers but still very little pH1N1 in Oklahoma:

Week 5 OK Isolates.png
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-6 (Four New Deaths; Total 12)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-6 (Four New Deaths; Total 12)

Week 6:
4 new deaths; total 12: Deaths occurred in the following age groups; 19-64 years (2), and over 65 years of age (2), from Canadian, Oklahoma (2), and Tulsa counties. All deaths had preexisting conditions and/or complications from secondary bacterial infection.

126 new hospitalizations; total 724

ILI: 7.3% (The percentage of patients meeting the ILI criteria exceeded the 3.5% baseline in the northwest, northeast, southeast, central, and Tulsa county regions.)
* 60.0% of patients meeting the ILI criteria were under 24 years of age.
* 20.9% of rapid influenza tests performed by sentinel laboratories were positive; 61% indicated infection with type A viruses and 39.0% detected type B influenza.
* 86.4% specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza.
* Forty-eight percent of hospitalizations have occurred among children 18 years of age or less.
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-7 (Three New Deaths; Total 15)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-7 (Three New Deaths; Total 15)

http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html

Oklahoma is a typical example of what will likely occur throughout the U.S. this spring. If you look at the two charts related to the age groups affected and the timing of hospitaliztions it shows that there was a peak several weeks ago and that the demographics are pretty typical for seasonal flu. Many people are seeing this same pattern and claiming that most states are past peak.

Week 7 OK Hopitaliztons.png

Week 7 OK Death by age.png

However, if you look at the isolates data at the link above, it shows:

"Since September 1, 2010, 344 of 470 (73.2%) specimens tested by OSDH PHL by PCR were positive for influenza. 231 (67.2%) were positive for influenza A (H3), 11 (3.2%) were positive for 2009 influenza A (H1N1), and 102 (29.7%) were positive for influenza B."

So, Oklahoma has had a tough flu season already, including 15 deaths, three of which were children, and yet only 3% of the isolates tested this season have shown to be pH1N1. I'm trying to find out how many of the deaths were from pH1N1 to determine if that is disproportiate with the 3% of isolates tested.

I hope I am wrong, but I suspect that %ILI will continue to drop in states like Oklahoma for a couple of weeks and then pH1N1 will increase dramatically and there will be a second peak, perhaps in March, with many more serious cases.
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-8 (Two New Deaths; Total 17)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-8 (Two New Deaths; Total 17)

Week 8:
2 new deaths (65 years and older); total 17
55 new hospitalizations; total 865

ILI: 5.7% (The percentage of patients meeting the ILI criteria exceeded the 3.5% baseline in the northwest, northeast, southeast, and Tulsa county regions)

73.3% specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-9 (One New Death; Total 18)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-9 (One New Death; Total 18)

Week 9:
1 new death (65 years and older); total 18
38 new hospitalizations; total 904

ILI: 4.8%

77.8% specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-10 (One New Death; Total 19)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-10 (One New Death; Total 19)

Week 10:
1 new death (65 years and older); total 19
23 new hospitalizations; total 927

ILI: 3.6%

87.5% specimens tested at the OSDH Public Health Laboratory (PHL) by polymerase chain reaction (PCR) were positive for influenza
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-11 (One New Death; Total 20)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-11 (One New Death; Total 20)

State flu deaths rise to 21

By SHANNON MUCHMORE World Staff Writer
Published: 3/31/2011 11:11 AM
Last Modified: 3/31/2011 11:11 AM

A Tulsa County resident died from the flu last week, bringing the total number of deaths this season to 21, according to the Oklahoma State Health Department.

The person who died was between 50 and 64.
...
http://www.tulsaworld.com/news/article.aspx?subjectid=17&articleid=20110331_439_0_ATulsa974832
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-15 (No New Deaths; Total 22)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-15 (No New Deaths; Total 22)

Week 15:
No new deaths; total 22
5 new hospitalizations; total 992
Forty-eight percent of hospitalizations have occurred among children 18 years of age or less.
None of the specimens sent tested positive by PCR
ILI: 0.7%
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-16 (No New Deaths; Total 22)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-16 (No New Deaths; Total 22)

Week 16:
No new deaths; total 22
8 new hospitalizations; total 1,000
No samples sent for further testing
ILI: 0.6%
 
Re: Oklahoma 2010-2011 Flu Season: Weeks 40-17 (Two Additional Deaths; Total 24)

Re: Oklahoma 2010-2011 Flu Season: Weeks 40-17 (Two Additional Deaths; Total 24)

Week 17:
2 additional deaths; total 24 (the deaths occurred earlier in the influenza season during January – February, 2011. Both individuals were Pottawatomie County residents in the 65 and older age group)
3 new hospitalizations; 1,003
ILI: 0.3%
~5% positive for influenza (A/H3N2) http://www.ok.gov/health/documents/Flu Lab 2010-11 and Past 2 Seasons - 10-09-10.pdf
http://www.ok.gov/health/documents/Sentinel and PHL Influenza Graph - 10-09-10_PCR.pdf
http://www.ok.gov/health/Disease,_P..._Service/Disease_Information/OK_Flu_View.html
 
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