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AFHSC 2010-11 Season: Weeks 43-21

Re: AFHSC 2010-11 Season: Weeks 43-9

Re: AFHSC 2010-11 Season: Weeks 43-9

74.3% were vaccinated. I really don't know how to interpret this. If nearly 75% of flu cases were vaccinated and the vaccination rate was 100%, then the vaccine failure rate would be 75%, right? If the vaccination rate was 50%, but 75% of cases were vaccinated, just for the sake of argument, wouldn't that suggest that the vaccinated population was more likely to get influenza?

On the other hand, if the vaccination rate was 75% and the percent of flu patients that were vaccinated was also 75%, wouldn't that mean that there was a near 100% failure rate? I realize that there would need to be a statistically significant population to do the analysis, but in layman's terms, it appears that for the AFHSC, the vaccine did little to prevent flu.

I suppose the flaw with my point is that we are dealing with three strains. So, the vaccine could have a much higher failure rate for one strain, but be very effective for the other two.
 
Re: AFHSC 2010-11 Season: Weeks 43-10

Re: AFHSC 2010-11 Season: Weeks 43-10

MHS Influenza Surveillance Report Week 10 (Week Ending March 12, 2011)
* Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates decreased this week for almost all regions and vaccination groups.
* The percent of all outpatient visits due to ILI decreased this week for all groups except PACOM beneficiaries. Beneficiary populations remained at or above baseline, while service member percents remained below baseline. All groups remained at or below previous season percents.
* The percent of all outpatient visits due to P&I continued to decrease for all groups. Percents were below baseline and at or below previous season percents.
* Due to date feeds delays, reportable medical event (RME) data are not available for this week. As of last week, there were 414 RME influenza cases among service members (74.3% were vaccinated) reported since week 40. An additional 1821 cases were reported among other beneficiaries.


DOD Influenza Surveillance Report (15 Mar 2011)
The number of samples collected and the percent positive for influenza has decreased for the last three weeks

The percent of all outpatient visits due to influenza-like-illness (ILI) decreased this week for all regions

Active duty immunization coverage within the DoD is at 96%

Type 4 adenovirus remains the predominant cause of febrile respiratory illness at most recruit training centers, with the exception of MCRD Paris Island where type 14 adenovirus is predominant

There has been a decrease in A/H1 co-circulation with A/H3 and B influenza viruses

There continues to be good agreement between current vaccine components and circulating influenza vaccine strains

No evidence of antiviral resistance (via genetic markers) in all analyzed A/H1 samples
http://www.afhsc.mil/viewFlu?file=dodWeekly.pdf
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-11

Re: AFHSC 2010-11 Season: Weeks 43-11

MHS Influenza Surveillance Report Week 11 (Week Ending March 19, 2011)

Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates decreased this week for almost all regions and vaccination groups.
The percent of all outpatient visits due to ILI decreased this week for all groups except PACOM. Beneficiary populations remained at or above baseline, while service member percents remained below baseline.
The percent of all outpatient visits due to P&I remained the same or decreased for all groups. Percents were below baseline and at or below previous season percents.
Due to data feed delays, reportable medical event (RME) data is not complete. There have been 424 reportable medical event influenza cases among SMs since week 40. An additional 1859 cases have been reported among other beneficiaries.
http://www.afhsc.mil/viewFlu?file=mhsWeekly.pdf
http://www.afhsc.mil/fluReports?clear

DoD Summary:
In Week 11, ESSENCE counts of total MHS clinic visits for influenza-like-illness (ILI ) decreased by 15.6% compared to Week 10
and were 36.5% lower than the peak counts in Week 6.
Active duty immunization coverage within the DoD is at 96%.

United States Air Force School of Aerospace Medicine
There has been an overall decrease in influenza positives; co-circulating strains are influenza A/H1, A/H3, and B.
Overall DoD weekly outpatient ILI visit proportions decreased in Week 10 to 5.54% from 5.81% the previous week; this
decrease is within the average 8-year trend.

Naval Health Research Center
Continue to see all influenza types with steady percent positive samples. A/H1 predominates among influenza positive recruits.
Type 4 adenovirus remains the predominant cause of febrile respiratory illness at most recruit training centers.
Type 14 adenovirus is also present at MCRD Parris Island and MRCD San Diego.

DoD Overseas Laboratories:
Continue to see low levels of circulating ILI activity among surveillance sites in West Africa (GVF, Univ. of Buea, USAMRU-K).
Moderate influenza activity in East Africa, predominately influenza B and A/H1 (USAMRU-K).
Increased ILI activity at surveillance sites in South America with low numbers of specimens positive for influenza (NAMRU-6).
http://www.afhsc.mil/viewFlu?file=dodWeekly.pdf
 
Re: AFHSC 2010-11 Season: Weeks 43-12

Re: AFHSC 2010-11 Season: Weeks 43-12

MHS Influenza Surveillance Report Week 12 (Week Ending March 26, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to decline.
The percent of all outpatient visits due to ILI continued to decrease with the exception of EUCOM beneficiaries and PACOM percents, which increased. US beneficiary percents were above baseline and PACOM beneficiary percents, were above baseline and previous season percents.
The percent of all outpatient visits due to P&I decreased or remained the same for all groups. All percents were at or below baseline and previous season percents.
There have been 464 reportable medical event (RME) influenza cases among service members (77.2% were vaccinated) reported since week 40. An additional 1977 cases have been reported among other beneficiaries.
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-13

Re: AFHSC 2010-11 Season: Weeks 43-13

MHS Influenza Surveillance Report Week 13 (Week Ending April 2, 2011)

Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to remain at low and stable levels.
The percent of all outpatient visits due to ILI remained fairly stable this week for all regions. Percents were at or below previous season percents for all regions and were below baseline for all populations except US and PACOM beneficiaries.
The percent of all outpatient visits due to P&I remained fairly stable this week for all regions. All percents were at or below baseline and previous season percents.
There have been 482 reportable medical event (RME) influenza cases among service members (77.4% were vaccinated) reported since week 40. An additional 2033 cases have been reported among other beneficiaries.
http://www.afhsc.mil/viewFlu?file=mhsWeekly.pdf
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-14

Re: AFHSC 2010-11 Season: Weeks 43-14

MHS Influenza Surveillance Report Week 14 (Week Ending April 9, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates decreased from last week.
The percent of all outpatient visits due to ILI remained stable for all populations except the US region and PACOM service member (SM) percents, which increased this week. However, US beneficiaries were the only population with percents above baseline and previous season percents.
The percent of all outpatient visits due to P&I increased slightly this week for US and PACOM SMs and EUCOM beneficiaries. However, all population percents remained at or below baseline and previous season percents.
There have been 563 reportable medical event (RME) influenza cases among service members (79.9% were vaccinated) reported since week 40. An additional 2415 cases have been reported among other beneficiaries.

DoD Influenza Surveillance Summary (12 April 2011)
There has been an overall decrease in influenza positive samples; all three strains continue to co-circulate
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to remain at low and stable levels.
Active duty immunization coverage within the DoD is at 96%
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-16

Re: AFHSC 2010-11 Season: Weeks 43-16

MHS Influenza Surveillance Report Week 16 (Week Ending April 23, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to decrease in the US and remained at a low, steady rate in EUCOM and PACOM.
The percent of all outpatient visits due to ILI decreased or remained the same from last week for all regions. Percents were at or below baseline and previous season percents, with the exception of US beneficiary percents which were slightly above baseline.
The percent of all outpatient visits due to P&I decreased or remained stable from last week for all regions. Percents were at or below baseline and previous season percents.
There have been 592 reportable medical event (RME) influenza cases among service members (79.9% were vaccinated) reported since week 40. An additional 2497 cases have been reported among other beneficiaries.

DoD Influenza Surveillance Summary (27 April 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to remain at low and stable levels within the Military Health System; low ILI activity at most overseas laboratory surveillance programs
Active duty immunization coverage within the DoD is at 96%
Naval Research Center: "Continue to see all influenza types with A/H1 among recruits and A/H1, A/H3, and B among DoD beneficiaries at MTFs and
civilians from the US-Mexico border surveillance program."
http://www.afhsc.mil/viewFlu?file=dodWeekly.pdf
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-17

Re: AFHSC 2010-11 Season: Weeks 43-17

MHS Influenza Surveillance Report Week 17 (Week Ending April 30, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates again continued to decrease in the US and remained at a low, steady rate in EUCOM and PACOM.
The percent of all outpatient visits due to ILI decreased or remained unchanged from last week for all regions. Percents were at or below baseline and previous season percents, with the exception of US beneficiary percents which were slightly above baseline.
The percent of all outpatient visits due to P&I decreased or remained stable from last week for all regions. Percents were at or below baseline and previous season percents.
There have been 600 reportable medical event (RME) influenza cases among service members (79.2% were vaccinated) reported since week 40. An additional 2,507 cases have been reported among other beneficiaries.
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-18

Re: AFHSC 2010-11 Season: Weeks 43-18

MHS Influenza Surveillance Report Week 18 (Week Ending May 7, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to decrease in the US and remained at a steady rate in PACOM and EUCOM, with the exception of the EUCOM P&I unvaccinated rate which rose sharply from last week.
The percent of all outpatient visits due to ILI again decreased or remained unchanged from last week for all regions. Percents were at or below baseline and previous season percents, with the exception of US beneficiary percents which were slightly above baseline.
The percent of all outpatient visits due to P&I decreased or remained stable from last week for all regions. Percents were at or below baseline and previous season percents.
There have been 606 reportable medical event (RME) influenza cases among service members (79.2% were vaccinated) reported since week 40. An additional 2,515 cases have been reported among other beneficiaries.
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-20

Re: AFHSC 2010-11 Season: Weeks 43-20

MHS Influenza Surveillance Report Week 20 (Week Ending May 21, 2011)
Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates continued to remain low for all regions.
The percent of all outpatient visits due to ILI only fluctuated slightly from last week. Percents were at or below baseline and previous season percents for all regions.
The percent of all outpatient visits due to P&I remained similar to last week and were below baseline and previous season percents for all regions.
There have been 607 reportable medical event (RME) influenza cases among service members (79.2% were vaccinated) reported since week 40. An additional 2,522 cases have been reported among other beneficiaries.
http://www.afhsc.mil/fluReports?clear
 
Re: AFHSC 2010-11 Season: Weeks 43-21

MHS Influenza Surveillance Report Week 21 (Week Ending May 28, 2011)

Influenza-like illness (ILI) and pneumonia and influenza (P&I) incidence rates decreased slightly from last week and continued to remain low for all regions.
The percent of all outpatient visits due to ILI decreased or remained the same from last week. Percents were at or below baseline and previous season percents for all regions.
The percent of all outpatient visits due to P&I remained similar to last week and were at or below baseline and previous season percents for all regions.
There have been 608 reportable medical event (RME) influenza cases among service members (79.3% were vaccinated) reported since week 40. An additional 2,524 cases have been reported among other beneficiaries.
http://www.afhsc.mil/fluReports?clear
 
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