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Hawaii 2009-2010 Flu Season

Re: HAWAI?I Influenza Surveillance Report MMWR1 Week 46

Re: HAWAI?I Influenza Surveillance Report MMWR1 Week 46

Note that this 7 page report is on influenza trends in Hawaii in week 46. Interestingly, page six has the WHO table of H5N1 cases by country through November 27, 2009, and a graph of new human H5N1 infections by MMWR week starting with the 2009/2010 flu season. I do not believe there are any other USA state health departments tracking both bird flu (H5N1) and swine flu (H1N1) by reporting week.
 
Re: HAWAII (Tracking H5N1 and H1N1)

Re: HAWAII (Tracking H5N1 and H1N1)

MMWR1 Week 47
"Outpatient ILI reported during week 47 was comparable to the historical baseline in Hawai‘i

Novel influenza A(H1N1) accounted for 100% of influenza A subtypes identified during the week ending 11/28/2009 (Week 47).

During week 47 the 2009-10 influenza season, 12.8% of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline in Hawai‘i for week 47. Honolulu P&I mortality for week 47 was comparable to the epidemic threshold (7.1%) and national P&I mortality (7.2%)."

Percent positive: 22.3%

Week 50: Vietnam shows new cases of H5N1 (page 6 of report)
http://hawaii.gov/health/family-chi...ports/Influenza Surveillance Week 47 2009.pdf
 
Re: HAWAII (Tracking H5N1 and H1N1)

Re: HAWAII (Tracking H5N1 and H1N1)

MMWR Week 49:

"Outpatient ILI reported during week 49 was comparable to the historical baseline in Hawai‘i...During week 49 the 2009-10 influenza season, 15.0% (95% CI 6.0-24.0%) of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline in Hawai‘i for week 49. Honolulu P&I mortality for week 49 was comparable to the epidemic threshold(7.1%) and national P&I mortality (7.2%)."

Percent positive specimens: 20.2%

H5N1:
Week 51: Cambodia (1 new case)
Week 52: Egypt (1 new case)
http://hawaii.gov/health/family-chi...ports/Influenza Surveillance Week 49 2009.pdf
 
Re: HAWAII (Tracking H5N1 and H1N1)

Re: HAWAII (Tracking H5N1 and H1N1)

Week 51:
Outpatient ILI reported during week 51 was comparable to the historical baseline in Hawai‘i.

8.9% of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline. Honolulu P&I mortality for week 51 was comparable to the epidemic threshold(7.4%) and national P&I mortality (7.7%).

...week ending December 26, 2009, influenza A accounted for 100% of positive influenza. Positive specimens: 19.1%

Avian Influenza: Change reported since week 49: 19 dead; 20 new cases (Indonesia)
http://hawaii.gov/health/family-chi...ports/Influenza Surveillance Week 51 2009.pdf
 
Re: HAWAII Week 1 (Tracking H5N1 and H1N1)

Re: HAWAII Week 1 (Tracking H5N1 and H1N1)

Week 1:

ILI reported during week 1, 2010 was comparable to the historical baseline. The percent ILI of all visits to Sentinel Providers reported during week 52 of the current flu year: 5.3%

During week 1 the 2009-10 influenza season, 11.5% of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline in Hawai‘i for week 1. Honolulu P&I mortality for week 52 was comparable to the epidemic threshold (7.5%) and national P&I mortality (7.4%).

In the week ending January 3, 2010 (MMWR week 1), influenza A accounted for 92.3% of positive influenza tests. Novel influenza A(H1N1) accounted for 100% of influenza A subtypes identified during the week ending 1/9/2009.

Positive specimens: 19.1%
http://hawaii.gov/health/family-chi...eports/Influenza Surveillance Week 1 2010.pdf
 
Re: HAWAII Week 2 (Tracking H5N1 and H1N1)

Re: HAWAII Week 2 (Tracking H5N1 and H1N1)

Week 2:

Outpatient ILI reported during week 2, was comparable to the historical baseline in Hawai‘i.

During week 2 the 2009-10 influenza season, 8.8% (95% CI 1.4-16.1%) of all deaths in Honolulu,Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline in Hawai‘i for week 1. Honolulu P&I mortality for week 2 was comparable to the epidemic threshold(7.6%) and national P&I mortality (8.0%).

Positive specimens: 12.5%
http://hawaii.gov/health/family-chi...eports/Influenza Surveillance Week 2 2010.pdf
 
Re: HAWAII Reports P&I at 20.3% -Week 4 (Tracking H5N1 and H1N1)

Re: HAWAII Reports P&I at 20.3% -Week 4 (Tracking H5N1 and H1N1)

Week 4:

During week 4 the 2009-10 influenza season, 20.3% of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was higher than the historical P&I baseline in Hawai‘i for week 4. Honolulu P&I mortality for week 4 was higher than the epidemic threshold (7.8%) and national P&I mortality (8.1%).

ILI: 1.4% (baseline 1.82%)

Percent positive specimens:18.9%
http://hawaii.gov/health/family-child-health/contagious-disease/influenza/Flu_Glance.htm
 
Re: HAWAII total death for season 13

Re: HAWAII total death for season 13

Hawaii has not updated website since week 4. Total deaths 13.

Jan20: The Hawai'i State Department of Health (DOH) has confirmed 2009 H1N1 influenza infection in an adult female in her 30s who died while hospitalized for pneumonia in late December 2009, and a 50 year-old adult male who died last week after being admitted to an area hospital. Both individuals were Oahu residents and bring the total number of deaths in Hawai'i with laboratory-confirmed 2009 H1N1 influenza to 13.
The female patient had underlying medical conditions that contributed to her decline and death. The male individual did not appear to have contributing underlying medical conditions. http://hawaii.gov/health/about/pr/2010/10-007.pdf

P&I : (for Honolulu)
Week 3: 14.1%
Week 4: 20.3%
Week 5: 12%
Week 6: 11%
Week 7: 7.5%
Week 8: 13%
http://wonder.cdc.gov/mmwr/mmwr_reps.asp

RSV: Normal compared to last year at this time (around 10%)
http://www.cdc.gov/surveillance/nrevss/rsv/state.html
 
Re: HAWAII (Week 9) total death for season 13

Re: HAWAII (Week 9) total death for season 13

After last reporting in week 8, Hawaii has now put out a report for week 9:

ILI: 1.5%
Percent positive: under 5% "In the week ending March 6, 2010, influenza A accounted for 60% of positive influenza tests"
P&I: 13.2 "This P&I was lower than the historical P&I baseline6 in Hawai‘i for week 9. Honolulu P&I mortality for week 9 was comparable to the epidemic threshold
(7.9%) and national P&I mortality (7.7%)"
Influenza B detected week 8
Two clusters of ILI in schools on Oahu were reported during week 9, 2010.

H5N1 Tracking:
As of Mar15, 2010: 489 cases; 289 deaths
New cases:
Week 6: 2-Egypt;1-Indonesia
Week 9: 5-Egypt
Week 10: 2-Egypt
Week 11: 1-Vietnam
http://hawaii.gov/health/family-chi...eports/Influenza Surveillance Week 9 2010.pdf

Week 10 P&I: 12.8% (MMWR)
 
Re: HAWAII (Week 12/13) total death for season 13

Re: HAWAII (Week 12/13) total death for season 13

Week 12/13:

One cluster of ILI was reported in a single classroom in a school on Maui during week 13, 2010. Eight (34.8%) of twenty three children in the class met criteria for ILI, and specimens were collected from 3 (37.5%) cases and 1 contact. All four specimens collected demonstrated 2009 H1N1 virus by RT-PCR.

Since the beginning of the 2009-10 influenza season (MMWR week 35, 2009), a total of 18,432 specimens have been tested statewide for influenza viruses. Of these, 8,003 (43.4%) were screened only by rapid antigen tests, whereas the remaining 10,429 (56.6%) received some type of confirmatory testing (either RTPCR or viral culture). Altogether, a total of 1,404 (7.6%) cases of influenza A, and 50 (0.3%) cases of influenza B were detected using any method. Of the influenza A cases detected, 469 (33.4%) were 2009 H1N1, 2 (0.1%) were influenza A(H3), and the remaining (N = 933, 66.5%) were influenza A of unknown subtype. In the week ending March 27, 2010 (MMWR week 12), 2009 H1N1 accounted for 25% (N=1), whereas influenza B accounted for the remaining (75%, N=3) positive influenza tests.

P&I: During week 12 the 2009-10 influenza season, 7.9% of all deaths in Honolulu, Hawai‘i were due to pneumonia or influenza. This P&I was comparable to the historical P&I baseline in Hawai‘i for week 12.

Outpatient ILI (1.6%) reported during week 12, 2010 was comparable to the historical baseline in Hawai‘i.
http://hawaii.gov/health/family-child-health/contagious-disease/influenza/Flu_Glance.htm
 
Re: HAWAII (Weeks 24-25)

Re: HAWAII (Weeks 24-25)

NOTE...Website has been down, or not updated since week 17. This is the most current report now available.

Week 20:
ILI: 1.17%
P&I deaths: 13.9%
Altogether, a total of 1,468 (7.1%) cases of influenza A, and 97 (0.5%) cases of influenza B were detected using any method. Of the influenza A cases detected, 479 (32.6%) were 2009 H1N1, 1 (0.1%) was influenza A(H3), 1 (0.1%) was seasonal influenza A(H1) and the remaining (N = 987, 67.2%) were influenza A of unknown subtype. In the week ending May 22, 2010 (MMWR week 20), 2009 H1N1 accounted for 16.7% (N=1), whereas influenza B accounted for the remaining (83.3%, N=5) positive influenza tests.
(The majority of specimens testing positive by rapid antigen testing or RT-PCR at the commercial laboratories did not meet criteria and were not subtyped.)

New HPAI H5N1 cases: Vietnam 2 (week 16); Cambodia 1 (week 18); China 1 (week 23)
http://hawaii.gov/health/family-chi...ports/Influenza Surveillance Week 20 2010.pdf

Weeks 24-25:
ILI: 1.45%
P&I deaths: 7.7%
There have been no influenza-associated pediatric deaths in Hawaii since week 21, 2010.
%A(H3) is now as prevalent as %A(Unsubtyped) (Persons 25-44 years were most likely to test positive when influenza was suspected)

Indonesia reported one new HPAI H5N1 case
http://hawaii.gov/health/family-child-health/contagious-disease/influenza/Flu_Glance.htm
 
Re: HAWAII (Weeks 33-34)

Re: HAWAII (Weeks 33-34)

Weeks 33-34:
Outpatient ILI reported during weeks 33 and 34 were comparable to the historical baseline in Hawai?i.

P&I deaths: 10.0%
There have been no influenza-associated pediatric deaths in Hawaii since week 21, 2010.

Since week 21, a total of 51 (2.8%) cases of influenza A, and 5 (0.3%) cases of influenza B were detected using any method. Of the influenza A cases detected, 1 (2.0%) was 2009 H1N1, and 26(51.0%) were influenza A(H3); the remaining (N = 24, 47.1%) were influenza A of unknown subtype. Persons 5-24 years were most likely to test positive when influenza was suspected (31% positive influenza cases versus 18% of specimens tested). Persons <1 year old were least likely to be positive for influenza and likely to have other etiologies for their respiratory illness.
http://hawaii.gov/health/flu-hawaii-gov/Documents/InfluenzaSurveillanceWeek33_34_2010.pdf
http://hawaii.gov/health/flu-hawaii-gov/surveillance.html
 
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