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CDC Surveillance Week 24

H

HenryN

Retired
<TABLE border=1><CAPTION>INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season </CAPTION><TBODY><TR><TH id=header1 width=70>Week</TH><TH id=header2 width=90>A(H1)</TH><TH id=header3 width=70>A(Novel H1N1)</TH><TH id=header4 width=70>A(H3)</TH><TH id=header5 width=70>A(Could Not Subtyped)</TH><TH id=header6 width=70>A(Unk)</TH><TH id=header7 width=70>B </TH><TH id=header8 align=right>Total # Tested</TH><TH id=header9 align=right>% Positive</TH></TR><TR><TD headers=header1 align=right>40 </TD><TD headers=header2 align=right>3 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>0 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>8 </TD><TD headers=header7 align=right>6 </TD><TD headers=header8 align=right>2606 </TD><TD headers=header9 align=right>0.65 </TD></TR><TR><TD headers=header1 align=right>41 </TD><TD headers=header2 align=right>5 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>4 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>8 </TD><TD headers=header7 align=right>6 </TD><TD headers=header8 align=right>2665 </TD><TD headers=header9 align=right>0.86 </TD></TR><TR><TD headers=header1 align=right>42 </TD><TD headers=header2 align=right>13 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>3 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>15 </TD><TD headers=header7 align=right>6 </TD><TD headers=header8 align=right>2800 </TD><TD headers=header9 align=right>1.32 </TD></TR><TR><TD headers=header1 align=right>43 </TD><TD headers=header2 align=right>22 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>0 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>24 </TD><TD headers=header7 align=right>14 </TD><TD headers=header8 align=right>3255 </TD><TD headers=header9 align=right>1.84 </TD></TR><TR><TD headers=header1 align=right>44 </TD><TD headers=header2 align=right>12 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>3 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>21 </TD><TD headers=header7 align=right>5 </TD><TD headers=header8 align=right>3383 </TD><TD headers=header9 align=right>1.21 </TD></TR><TR><TD headers=header1 align=right>45 </TD><TD headers=header2 align=right>32 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>2 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>23 </TD><TD headers=header7 align=right>11 </TD><TD headers=header8 align=right>3992 </TD><TD headers=header9 align=right>1.7 </TD></TR><TR><TD headers=header1 align=right>46 </TD><TD headers=header2 align=right>25 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>2 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>23 </TD><TD headers=header7 align=right>12 </TD><TD headers=header8 align=right>4213 </TD><TD headers=header9 align=right>1.47 </TD></TR><TR><TD headers=header1 align=right>47 </TD><TD headers=header2 align=right>27 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>1 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>31 </TD><TD headers=header7 align=right>23 </TD><TD headers=header8 align=right>4604 </TD><TD headers=header9 align=right>1.78 </TD></TR><TR><TD headers=header1 align=right>48 </TD><TD headers=header2 align=right>40 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>1 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>47 </TD><TD headers=header7 align=right>24 </TD><TD headers=header8 align=right>4733 </TD><TD headers=header9 align=right>2.37 </TD></TR><TR><TD headers=header1 align=right>49 </TD><TD headers=header2 align=right>43 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>6 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>57 </TD><TD headers=header7 align=right>14 </TD><TD headers=header8 align=right>5442 </TD><TD headers=header9 align=right>2.21 </TD></TR><TR><TD headers=header1 align=right>50 </TD><TD headers=header2 align=right>71 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>9 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>66 </TD><TD headers=header7 align=right>37 </TD><TD headers=header8 align=right>5893 </TD><TD headers=header9 align=right>3.11 </TD></TR><TR><TD headers=header1 align=right>51 </TD><TD headers=header2 align=right>73 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>19 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>108 </TD><TD headers=header7 align=right>56 </TD><TD headers=header8 align=right>6146 </TD><TD headers=header9 align=right>4.17 </TD></TR><TR><TD headers=header1 align=right>52 </TD><TD headers=header2 align=right>71 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>12 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>155 </TD><TD headers=header7 align=right>51 </TD><TD headers=header8 align=right>5926 </TD><TD headers=header9 align=right>4.88 </TD></TR><TR><TD headers=header1 align=right>53 </TD><TD headers=header2 align=right>115 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>19 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>173 </TD><TD headers=header7 align=right>48 </TD><TD headers=header8 align=right>6400 </TD><TD headers=header9 align=right>5.55 </TD></TR><TR><TD headers=header1 align=right>01 </TD><TD headers=header2 align=right>165 </TD><TD headers=header3 align=right>1 </TD><TD headers=header4 align=right>27 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>286 </TD><TD headers=header7 align=right>83 </TD><TD headers=header8 align=right>6799 </TD><TD headers=header9 align=right>8.27 </TD></TR><TR><TD headers=header1 align=right>02 </TD><TD headers=header2 align=right>199 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>22 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>425 </TD><TD headers=header7 align=right>97 </TD><TD headers=header8 align=right>6937 </TD><TD headers=header9 align=right>10.71 </TD></TR><TR><TD headers=header1 align=right>03 </TD><TD headers=header2 align=right>349 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>44 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>628 </TD><TD headers=header7 align=right>187 </TD><TD headers=header8 align=right>7745 </TD><TD headers=header9 align=right>15.6 </TD></TR><TR><TD headers=header1 align=right>04 </TD><TD headers=header2 align=right>559 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>78 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>902 </TD><TD headers=header7 align=right>362 </TD><TD headers=header8 align=right>9150 </TD><TD headers=header9 align=right>20.78 </TD></TR><TR><TD headers=header1 align=right>05 </TD><TD headers=header2 align=right>675 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>52 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>1370 </TD><TD headers=header7 align=right>677 </TD><TD headers=header8 align=right>11595 </TD><TD headers=header9 align=right>23.92 </TD></TR><TR><TD headers=header1 align=right>06 </TD><TD headers=header2 align=right>816 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>63 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>1374 </TD><TD headers=header7 align=right>922 </TD><TD headers=header8 align=right>12748 </TD><TD headers=header9 align=right>24.91 </TD></TR><TR><TD headers=header1 align=right>07 </TD><TD headers=header2 align=right>819 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>65 </TD><TD headers=header5 align=right>1 </TD><TD headers=header6 align=right>1081 </TD><TD headers=header7 align=right>901 </TD><TD headers=header8 align=right>11658 </TD><TD headers=header9 align=right>24.59 </TD></TR><TR><TD headers=header1 align=right>08 </TD><TD headers=header2 align=right>678 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>59 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>1010 </TD><TD headers=header7 align=right>1113 </TD><TD headers=header8 align=right>11885 </TD><TD headers=header9 align=right>24.06 </TD></TR><TR><TD headers=header1 align=right>09 </TD><TD headers=header2 align=right>537 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>58 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>887 </TD><TD headers=header7 align=right>1101 </TD><TD headers=header8 align=right>10642 </TD><TD headers=header9 align=right>24.27 </TD></TR><TR><TD headers=header1 align=right>10 </TD><TD headers=header2 align=right>373 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>63 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>642 </TD><TD headers=header7 align=right>1016 </TD><TD headers=header8 align=right>9398 </TD><TD headers=header9 align=right>22.28 </TD></TR><TR><TD headers=header1 align=right>11 </TD><TD headers=header2 align=right>354 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>63 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>425 </TD><TD headers=header7 align=right>879 </TD><TD headers=header8 align=right>8399 </TD><TD headers=header9 align=right>20.49 </TD></TR><TR><TD headers=header1 align=right>12 </TD><TD headers=header2 align=right>258 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>41 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>283 </TD><TD headers=header7 align=right>612 </TD><TD headers=header8 align=right>7116 </TD><TD headers=header9 align=right>16.78 </TD></TR><TR><TD headers=header1 align=right>13 </TD><TD headers=header2 align=right>109 </TD><TD headers=header3 align=right>1 </TD><TD headers=header4 align=right>26 </TD><TD headers=header5 align=right>0 </TD><TD headers=header6 align=right>170 </TD><TD headers=header7 align=right>445 </TD><TD headers=header8 align=right>5558 </TD><TD headers=header9 align=right>13.51 </TD></TR><TR><TD headers=header1 align=right>14 </TD><TD headers=header2 align=right>88 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>31 </TD><TD headers=header5 align=right>1 </TD><TD headers=header6 align=right>123 </TD><TD headers=header7 align=right>259 </TD><TD headers=header8 align=right>4876 </TD><TD headers=header9 align=right>10.3 </TD></TR><TR><TD headers=header1 align=right>15 </TD><TD headers=header2 align=right>37 </TD><TD headers=header3 align=right>0 </TD><TD headers=header4 align=right>28 </TD><TD headers=header5 align=right>1 </TD><TD headers=header6 align=right>73 </TD><TD headers=header7 align=right>169 </TD><TD headers=header8 align=right>4393 </TD><TD headers=header9 align=right>7.01 </TD></TR><TR><TD headers=header1 align=right>16 </TD><TD headers=header2 align=right>43 </TD><TD headers=header3 align=right>13 </TD><TD headers=header4 align=right>32 </TD><TD headers=header5 align=right>3 </TD><TD headers=header6 align=right>79 </TD><TD headers=header7 align=right>103 </TD><TD headers=header8 align=right>3864 </TD><TD headers=header9 align=right>7.07 </TD></TR><TR><TD headers=header1 align=right>17 </TD><TD headers=header2 align=right>592 </TD><TD headers=header3 align=right>979 </TD><TD headers=header4 align=right>605 </TD><TD headers=header5 align=right>202 </TD><TD headers=header6 align=right>372 </TD><TD headers=header7 align=right>648 </TD><TD headers=header8 align=right>26518 </TD><TD headers=header9 align=right>12.81 </TD></TR><TR><TD headers=header1 align=right>18 </TD><TD headers=header2 align=right>400 </TD><TD headers=header3 align=right>1631 </TD><TD headers=header4 align=right>417 </TD><TD headers=header5 align=right>130 </TD><TD headers=header6 align=right>522 </TD><TD headers=header7 align=right>400 </TD><TD headers=header8 align=right>25484 </TD><TD headers=header9 align=right>13.73 </TD></TR><TR><TD headers=header1 align=right>19 </TD><TD headers=header2 align=right>113 </TD><TD headers=header3 align=right>1144 </TD><TD headers=header4 align=right>122 </TD><TD headers=header5 align=right>91 </TD><TD headers=header6 align=right>394 </TD><TD headers=header7 align=right>98 </TD><TD headers=header8 align=right>12312 </TD><TD headers=header9 align=right>15.94 </TD></TR><TR><TD headers=header1 align=right>20 </TD><TD headers=header2 align=right>46 </TD><TD headers=header3 align=right>2152 </TD><TD headers=header4 align=right>110 </TD><TD headers=header5 align=right>84 </TD><TD headers=header6 align=right>231 </TD><TD headers=header7 align=right>59 </TD><TD headers=header8 align=right>11658 </TD><TD headers=header9 align=right>23.01 </TD></TR><TR><TD headers=header1 align=right>21 </TD><TD headers=header2 align=right>14 </TD><TD headers=header3 align=right>2161 </TD><TD headers=header4 align=right>57 </TD><TD headers=header5 align=right>42 </TD><TD headers=header6 align=right>419 </TD><TD headers=header7 align=right>30 </TD><TD headers=header8 align=right>9763 </TD><TD headers=header9 align=right>27.89 </TD></TR><TR><TD headers=header1 align=right>22 </TD><TD headers=header2 align=right>14 </TD><TD headers=header3 align=right>2692 </TD><TD headers=header4 align=right>30 </TD><TD headers=header5 align=right>26 </TD><TD headers=header6 align=right>428 </TD><TD headers=header7 align=right>20 </TD><TD headers=header8 align=right>9464 </TD><TD headers=header9 align=right>33.92 </TD></TR><TR><TD headers=header1 align=right>23 </TD><TD headers=header2 align=right>32 </TD><TD headers=header3 align=right>2728 </TD><TD headers=header4 align=right>28 </TD><TD headers=header5 align=right>28 </TD><TD headers=header6 align=right>671 </TD><TD headers=header7 align=right>12 </TD><TD headers=header8 align=right>9230 </TD><TD headers=header9 align=right>37.91 </TD></TR><TR><TD headers=header1 align=right>24 </TD><TD headers=header2 align=right>17 </TD><TD headers=header3 align=right>2452 </TD><TD headers=header4 align=right>6 </TD><TD headers=header5 align=right>38 </TD><TD headers=header6 align=right>765 </TD><TD headers=header7 align=right>8 </TD><TD headers=header8 align=right>7844 </TD><TD headers=header9 align=right>41.89 </TD></TR></TBODY></TABLE>
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Re: CDC Surveillance Week 24

Detection rate continues to climb, and is now above 40% (compared to 25% at the peak of seasonal flu season in February).
 
Re: CDC Surveillance Week 24

I hadn't noticed before, but there is a novel H1 in week 1. Is that an error?
 
Re: CDC Surveillance Week 24

wotan said:
I hadn't noticed before, but there is a novel H1 in week 1. Is that an error?
Click to expand...
No, in the past 3 years there were something like 13 H1N1 infections. All were quite different from the pandmeioc H1N1 and none were efficiently transmitted. Almost all (12/13) infected had a link to swine.
 
Re: CDC Surveillance Week 24

OK, I assumed the novel H1N1 column refered only to the pandemic strain.
 
Re: CDC Surveillance Week 24

wotan said:
OK, I assumed the novel H1N1 column refered only to the pandemic strain.
Click to expand...
No, novel H1N1 just means H1N1 that isn't human H1N1. The use of the term "novel" is just more politics. Its really swine H1N1, as the CDC used to call it, becasue it clearly came from swine, even if found in a human. The use of the term "novel" just creates a lot of confusion and actually ignores the fact that 1918 started as swine H1N1 that moved into humans. There is a fairy tale out there claimimg that the swine H1N1 was avian, but that's nonsense. Almost all of 1918 sequence in all 8 gene segments can be created with just two sequences, a human H1N1 (WSN/33) and a swine H1N1 (swine/Iowa/15/31).
The 2009 pandemic is a re-run of the 1918 pandemic. The swine H1N1 will recombine with human H1N1 and create a recombinant that is a more efficient killer in the fall.
 
Re: CDC Surveillance Week 24

I wonder what the A(Could Not Subtyped) from week 7 was. Probably an inconclusive / error.
 
Re: CDC Surveillance Week 24

what are "% weighted ILI" here:
http://www.cdc.gov/flu/weekly/weeklyarchives2008-2009/data/senAllregt24.htm

how is it calculated ? I couldn't find it.

must be this : (1.887 rounded to 1.9)

> Nationwide during week 24, 1.9% of patient visits reported through the U.S. Outpatient
> Influenza-like Illness Surveillance Network (ILINet) were due to influenza-like illness (ILI).
> This percentage is below the national baseline of 2.4%.


the table says:

> PERCENTAGE OF VISITS FOR INFLUENZA-LIKE-ILLNESS REPORTED BY SENTINEL PROVIDERS 2008-2009

so, "Sentinal Providers" is another network, not "ILINet" ?

OK, I found some info here:
http://www.marylandfluwatch.org/ilinet-sentinel-providers

https://869789182725854870-a-maryla...SZn-ixajvxrx1kNg3g1faGCa_beZdF8zZuLGqMp_UARcM


I finally found something here:

http://www.cdc.gov/flu/weekly/fluactivity.htm

70 National Respiratory and Enteric Virus Surveillance System (NREVSS)
Surveillance for Novel Influenza A Viruses
Outpatient Influenza-like Illness Surveillance Network (ILINet)
122 Cities Mortality Reporting System
Surveillance for Influenza-associated Pediatric Mortality
Emerging Infections Program (EIP)
New Vaccine Surveillance Network (NVSN)
Summary of the Geographic Spread of Influenza


Page last updated: June 26, 2009
Content Source: Coordinating Center for Infectious Diseases (CCID)
National Center for Immunization and Respiratory Diseases (NCIRD)

-------------------------------------------------

The percentage of patient visits to healthcare providers for ILI reported each week is
weighted on the basis of state population.
 
Re: CDC Surveillance Week 24

pflu said:
I wonder what the A(Could Not Subtyped) from week 7 was. Probably an inconclusive / error.
Click to expand...
Please. This has been covered previously. It was swine H1N1 as descibed in the text (no conspiracies required).
 
Re: CDC Surveillance Week 24

gsgs said:
what are "% weighted ILI" here:
http://www.cdc.gov/flu/weekly/weeklyarchives2008-2009/data/senAllregt24.htm

how is it calculated ? I couldn't find it.

must be this : (1.887 rounded to 1.9)

> Nationwide during week 24, 1.9% of patient visits reported through the U.S. Outpatient
> Influenza-like Illness Surveillance Network (ILINet) were due to influenza-like illness (ILI).
> This percentage is below the national baseline of 2.4%.


the table says:

> PERCENTAGE OF VISITS FOR INFLUENZA-LIKE-ILLNESS REPORTED BY SENTINEL PROVIDERS 2008-2009

so, "Sentinal Providers" is another network, not "ILINet" ?

OK, I found some info here:
http://www.marylandfluwatch.org/ilinet-sentinel-providers

https://869789182725854870-a-maryla...SZn-ixajvxrx1kNg3g1faGCa_beZdF8zZuLGqMp_UARcM


I finally found something here:

http://www.cdc.gov/flu/weekly/fluactivity.htm

70 National Respiratory and Enteric Virus Surveillance System (NREVSS)
Surveillance for Novel Influenza A Viruses
Outpatient Influenza-like Illness Surveillance Network (ILINet)
122 Cities Mortality Reporting System
Surveillance for Influenza-associated Pediatric Mortality
Emerging Infections Program (EIP)
New Vaccine Surveillance Network (NVSN)
Summary of the Geographic Spread of Influenza


Page last updated: June 26, 2009
Content Source: Coordinating Center for Infectious Diseases (CCID)
National Center for Immunization and Respiratory Diseases (NCIRD)

-------------------------------------------------

The percentage of patient visits to healthcare providers for ILI reported each week is
weighted on the basis of state population.
Click to expand...
The CDC has acknowledged that the level last week was highest they have seen

"""Of course, reported cases are really just the tip of the iceberg. The number of new cases that were reported to us this past week was actually the largest number we've had reported since the beginning of the outbreak"""
 
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