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Delaware 2010-2011 Season: Weeks 40-20 (No New Deaths; Total 5)

Re: Delaware 2010-2011 Season: Weeks 40-43

Re: Delaware 2010-2011 Season: Weeks 40-43

Week 43: No Activity
No positive specimens
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html

NOTE: CDC definitions:
# No Activity: No laboratory-confirmed cases of influenza and no reported increase in the number of cases of ILI.
# Sporadic: Small numbers of laboratory-confirmed influenza cases or a single laboratory-confirmed influenza outbreak has been reported, but there is no increase in cases of ILI.
http://www.cdc.gov/flu/weekly/overview.htm#Hospitalization
 
Re: Delaware 2010-2011 Season: Weeks 40-5

Re: Delaware 2010-2011 Season: Weeks 40-5

Week 5: Sporadic
20 new hospitalizations (mostly ages 25-49 and 65+); total 74
176 new cases (jump in age 0-4); season total 534
ILI: ~1.5 (below baseline)
ED ILI: ~0.5%
ILI at LTHC and daycare is up from last week
A(2009 H1N1) now dominant
Very detailed report:
http://dhss.delaware.gov/dhss/dph/epi/files/flu2011wk05.pdf
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html

Sporadic: Isolated laboratory confirmed cases OR a laboratory confirmed outbreak in one institution but no
increase in reports of ILI from the regional baseline for the season.
Local: Increased ILI above the regional baseline for the season in a single county; ILI activity in other counties is
not increased above baseline AND recent (within the past three weeks) laboratory evidence of influenza in the
county with increased ILI OR two or more institutional outbreaks (ILI or laboratory confirmed flu) in a single
county AND recent (within the past three weeks) laboratory evidence of influenza in the county with the
outbreaks; virus activity is no greater than sporadic in other counties.
Regional: Outbreaks of influenza or increases in ILI and recent laboratory confirmed influenza in at least 2 but
less than half the regions of the state. (This level of activity does not apply for small states with 4 or fewer
regions.)
 
Re: Delaware 2010-2011 Season: Weeks 40-6 (One Death; Total 1)

Re: Delaware 2010-2011 Season: Weeks 40-6 (One Death; Total 1)

Week 6:
1 death reported; total 1
15 new hospitalizations (majority A/H3); total 98

ILI: ~1.7%
ED ILI: ~0.3%
Majority of cases in week 6 are 2009 A/H1N1; majority <50 years of age
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html

Thanks, RoRo
http://www.flutrackers.com/forum/showthread.php?p=393921&posted=1#post393921

Feb 17, 2011 - "Today the Delaware Division of Public Health (DPH) reports the first flu death of the 2010-2011 flu season, a 78 year-old male from New Castle County. The individual had underlying health conditions and had been hospitalized..."
http://dhss.delaware.gov/dhss/pressreleases/2011/delaware_flu_death-021711.html
 
Re: Delaware 2010-2011 Season: Weeks 40-7 (Two New Deaths; Total 3)

Re: Delaware 2010-2011 Season: Weeks 40-7 (Two New Deaths; Total 3)

Weeks 7/8:
DE website lists 2 deaths thru week 7; Flutrackers (RoRo) found one death reported in week 8; total 3 "Like the other two victims, the man had underlying health conditions..." http://www.delawareonline.com/artic...om-flu-reported?odyssey=tab|topnews|text|Home
http://www.flutrackers.com/forum/showthread.php?t=162819

In week 7:
ILI: ~2.3%
Majority of confirmed cases were in <50 years (majority ages 5-24); A(2009 H1N1)
Majority of hospitalizations were in >24 years and A(H3)
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html

Mar 1 Press Release: "Delaware's Division of Public Health reports the third flu death statewide of the 2010-2011 flu season occurred Feb. 28 of a 61 year-old man from Sussex County. The individual had underlying health conditions and had been hospitalized." http://dhss.delaware.gov/dhss/pressreleases/2011/influenza_death_is_second_in_sus.html
 
Re: Delaware 2010-2011 Season: Weeks 40-8 (No New Deaths; Total 3)

Re: Delaware 2010-2011 Season: Weeks 40-8 (No New Deaths; Total 3)

Week 8: Widespread
No new deaths; total 3
There have been a total of 168 hospitalizations (majority over 24 years)
ILI: ~2%
•956 of the 1,122 (85.2%) confirmed influenza cases were type A
o Of these, 480 (50.2%) were subtype 2009 H1, and
o 400 (41.8%) were subtype H3N2.
o The remaining 76 (7.9%) were of unknown subtype.
• 166 of the 1,122 (14.8%) confirmed influenza cases were type B.
http://dhss.delaware.gov/dhss/dph/epi/files/flu2011wk08.pdf
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html

Press Release: "Delaware's Division of Public Health (DPH) is following up on an antiviral-resistant influenza case identified March 2 in a child from Kent County. The child was not hospitalized and has fully recovered. This is Delaware’s first known case of influenza resistant to oseltamivir (brand name Tamiflu) treatment for the 2010-2011 flu season.

The case under investigation tested positive for influenza A / H1N1 in mid-February. The specimen – part of a random sample submitted for routine anti-viral resistance testing – was reported as oseltamivir-resistant the first week of March. Oseltamivir is the preferred treatment for confirmed cases of influenza. Resistance to oseltamivir is very rare, occurring in just 0.5 percent of cases studied during the 2009-2010 flu season. There is no reason to change treatment approaches at this time." http://dhss.delaware.gov/dhss/pressreleases/2011/resistant_flu_case_-030911.html
 
Re: Delaware 2010-2011 Season: Weeks 40-10 (One New Deaths; Total 4)

Re: Delaware 2010-2011 Season: Weeks 40-10 (One New Deaths; Total 4)

1 new death; total 4
While DE has not updated their website, FluTracker RoRo found information on a death in DE (91 year old woman).
http://www.flutrackers.com/forum/showthread.php?t=164380

Week 9:
• 1,040 of the 1,235 (84.2%) of confirmed influenza cases were type A
o Of these, 518 (49.8%) were subtype 2009 H1, and
o 437 (42.0%) were subtype H3N2.
o The remaining 85 (8.2%) were of unknown subtype.
• 195 of the 1,235 (15.8%) confirmed influenza cases were type B.
• Distribution of confirmed influenza cases across county were as follows:
o 38.2% occurred among Kent County residents
o 28.8% occurred among New Castle County residents
o 33.0% occurred among Sussex County residents
Total deaths through week 9: 4
http://dhss.delaware.gov/dhss/dph/epi/files/flu2011wk09.pdf

Week 10: Widespread
No new deaths; total 4
1,078 of the 1,313 (82.1%) of confirmed influenza cases were type A
*Of these, 530 (49.2%) were subtype 2009 H1, and
*453 (42.0%) were subtype H3N2.
*The remaining 95 (8.8%) were of unknown subtype.
*235 of the 1,313 (17.9%) confirmed influenza cases were type B.

ILI: 1.5%
ED ILI: 1.7%
12 new hospitalizations; total 207
http://dhss.delaware.gov/dhss/dph/epi/files/flu2011wk10.pdf
http://dhss.delaware.gov/dhss/dph/epi/influenzawkly.html
 
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