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Maryland 2010-2011 Season: Weeks 40-20 (Sporadic)

M

Missouriwatcher

Editor, Senior Moderator
Week 40: Sporadic
http://www.marylandfluwatch.org/
http://www.marylandfluwatch.org/weekly-report

(October 14, 2010) - The Maryland Department of Health and Mental Hygiene (DHMH) today announced the first official case of influenza for the 2010-2011 flu season. Laboratory tests have confirmed that the flu strain involved is the H1N1 strain the caused the 2009 pandemic. The Baltimore metro area adult has known health risk factors for influenza complications and was hospitalized but continues to recover. http://dhmh.maryland.gov/swineflu/pressreleases/101510.html
 
Re: Maryland 2010-2011 Season: Weeks 40-43

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

Week 42: Sporadic
3 hospitalizations (1 age 5-17; 2 ages over 65)
ILI: 1.2%
1.2% positive rapid test (Influenza A, B)
No positive PCR

Week 43: Sporadic
6 hospitalizations (3 were 65 and over, 1 age 0-4, 1 age 5-17, 1 age 50-64)
ILI: 0.6%
PCR detected A/H1 and A/H3
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-45

Re: Maryland 2010-2011 Season: Weeks 40-45

Week 44: Sporadic
Week 45: Sporadic
1 new hospitalization (25-49 yr old)
No positive PCR
During week 45 in Maryland, one hospitalization associated with influenza was reported. No outbreaks of influenza
or influenza-like illness (ILI) were reported. The proportion of visits to providers for ILI (1.5%) was below baseline, and the
proportion of Maryland residents reporting ILI was also low.

During week 45, 17 clinical laboratories reported 7
(2.1%) of 327 rapid influenza tests as positive. Four
were positive for type A, and three were positive for
type B influenza. This proportion of positive tests was
much lower than the proportion reported at this time
last season, which was 13.3%.
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-49 (Local Activity)

Re: Maryland 2010-2011 Season: Weeks 40-49 (Local Activity)

Week 49: Local
2 new hospitalizations; total 16
ILI: 1.3%
ED ILI: 1.5%
Rapid positive for influenza: 3.9% (Influenza A, B)
One new outbreak
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-1 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-1 (Widespread)

Week 1: Widespread
41 hospitalizations; total 157
2 outbreaks of influenza
3 outbreaks of pneumonia

ILI: 3.7%
ED ILI: 2.6%
40% positive (PCR) for influenza

Percentage of positive samples so far this season:
H1: 38%
H3: 54%
B: 8%
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-2 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-2 (Widespread)

Week 2: Widespread
214 total hospitalizations this season
ILI: 4.3%
24% positive specimens for influenza by PCR

So far this influenza season (October 3, 2010, to January 15, 2011) clinical laboratories have reported 811 positive
rapid test results. Of those 811, 715 (88%) have been type A and 96 (12%) have been type B. The State Laboratories
Administration has reported 119 positive PCR tests for influenza. Of those, 53 (44.5%) have been for influenza type A
(H1N1), 58 (48.7%) have been for influenza type A (H3), and 8 (6.7%) have been for influenza type B.
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-3 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-3 (Widespread)

Week 3: Widespread
1 outbreak; total 17
ILI: 5% (baseline 5.6%)
ED ILI: 3.4%
DHMH Laboratories Administration reports 47% positive for influenza (over half 2009/H1N1)
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-4 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-4 (Widespread)

Week 4: Widespread
76 hospitalizations; total 427
5 outbreaks (1 influenza, 2 pneumonia, 2 ILI); total 22

ILI: 4.3% (baseline 5.6%)
ED ILI: 3.3%
DHMH Laboratories Administration reports 73% positive for influenza (majority A/H3)
http://www.marylandfluwatch.org/
 
Re: Maryland 2010-2011 Season: Weeks 40-5 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-5 (Widespread)

Week 5: Widespread
80 hospitalizations; total 563
10 outbreaks (1 influenza, 7 pneumonia, 2 ILI); total 32

ILI: 4.5% (baseline 5.6%)
ED ILI: 2.9%
DHMH Laboratories Administration reports 67% positive for influenza (51% A/H3, 46% A/H1, and 3% Type B)
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-6 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-6 (Widespread)

Week 6: Widespread
56 hospitalizations; total 665
12 outbreaks (6 influenza, 3 pneumonia, 3 ILI); total 44

ILI: 4.2% (baseline 5.6%)
ED ILI: 3.2%
DHMH Laboratories Administration reports 68% positive for influenza: of the positives, 57% 2009 A/H1N1; 42% A/H3N2; 1% B
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-7 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-7 (Widespread)

Week 7: Widespread
78 hospitalizations; total 785
During week 7, four outbreaks of respiratory illness were reported. Three were confirmed as influenza outbreaks, and one was an outbreak of ILI. This brings the season’s total to 48 reported outbreaks.

ILI: 4% (baseline 5.6%)
ED ILI: 3.23%
DHMH Laboratories Administration reports 71% positive for influenza
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-8 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-8 (Widespread)

Week 8: Widespread
31 hospitalizations; total 851
During week 8, seven outbreaks of respiratory illness were reported. Five were confirmed as influenza outbreaks, and two were outbreaks of pneumonia. This brings the season’s total to 55 reported outbreaks.

ILI: 2.7% (baseline 5.6%)
ED ILI: 3%
DHMH Laboratories Administration reports 78% positive for influenza (evenly divided between A/H3 and A/2009 H1N1; some B)
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-9 (Widespread)

Re: Maryland 2010-2011 Season: Weeks 40-9 (Widespread)

Week 9: Widespread
55 hospitalizations; total 1,000
During week 9, seven outbreaks of respiratory illness were reported. Three were confirmed as influenza outbreaks, three were ILI outbreaks, and one was an outbreak of pneumonia. This brings the season?s total to 62 reported outbreaks. Last season, a total of 208 outbreaks of respiratory illness were reported. Of those, 33 were confirmed as influenza outbreaks.

ILI: 2.4% (baseline 5.6%)
ED ILI: 2.5%
DHMH Laboratories Administration reports 70% positive for influenza (majority A/2009 H1N1)
http://dhmh.maryland.gov/fluwatch/
http://dhmh.maryland.gov/fluwatch/
 
Re: Maryland 2010-2011 Season: Weeks 40-10 (Regional)

Re: Maryland 2010-2011 Season: Weeks 40-10 (Regional)

Week 10: Regional
44 new hospitalizations
ILI: 2.4%
ED ILI: 2.3%
65.7% positive for influenza
During week 10, three outbreaks of respiratory illness were reported. Two were confirmed as influenza outbreaks, and one was an outbreak of pneumonia. This brings the season?s total to 65 reported outbreaks.
http://dhmh.maryland.gov/fluwatch/
 
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