us cdc swine flu 26 may 2009

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Director’s Update Brief

Tuesday

26 May 2009 1100 EDT

Day 38

The Week of CDC Workforce

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Key Events

Novel Influenza A (H1N1) - 26 May 2009

Novel Influenza A (H1N1) Declarations

– HHS: Downgraded to Phase 1 – Awareness (9 May 2009)

– WHO: Pandemic Phase 5 (29 Apr 1600 EDT)

– USG: Public Health Emergency declared (26 Apr 2009)

US Cases:

As of 22 May 2009 0840 EDT

International Cases: 12,515 in 46 Countries

New countries with confirmed cases: Honduras, Iceland, Kuwait

Deployments: 24 deployed, 8 pending, 200 potential

Cases

Hosp

Deaths

6764

317

10

48

36

6

US TOTAL Cases

INCL DC

US TOTAL States

Affected INCL DC

Total Confimed and Probable

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Epidemiology/Surveillance Number of Novel Influenza A (H1N1)

Cases Reported to CDC by State

As of

22 May 2009 0840 EDT

(n=6,764)

200-400

51-200

1-50

0

>400

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Epidemiology/Surveillance

Novel Influenza A (H1N1) -

22 May 2009 0840 EDT

Confirmed and Probable Cases by Onset* and Report Date

0

100

200

300

400

500

600

700

800

900

28

-M

ar

30

-M

ar

1-A

pr

3-A

pr

5-A

pr

7-A

pr

9-A

pr

11

-A

pr

13

-A

pr

15

-A

pr

17

-A

pr

19

-A

pr

21

-A

pr

23

-A

pr

25

-A

pr

27

-A

pr

29

-A

pr

1-M

ay

3-Ma

y

5-M

ay

7-Ma

y

9-M

ay

11

-M

ay

13

-M

ay

15

-M

ay

17

-M

ay

19

-M

ay

21

-M

ay

Date

C

a

s

e

s

Onset Date (n=1,632)

Report Date (n=6,672)

*Information on onset date no longer presented after May 12 due to change to aggregate reporting

The large increase on 5/21
reflects a backlog of cases
from TX reported as of 8:00
5/21 and 18 hr reporting
period, vs 6.5 hrs for the

previous column.

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

WHO/NREVSS Collaborating Laboratories

– Seasonal influenza A (H1), A (H3), and B viruses co-circulated with novel

influenza A (H1N1) viruses

Influenza-associated Pediatric Deaths

– No new influenza-associated pediatric deaths reported. 08-09 total = 61

ILINet (week ending 16 May)

– % of ILI outpatient visits è the national baseline; overall trend remains

stable

122 Cities Mortality Reporting System (graph)

– % pneumonia and influenza deaths remains within expected

– % deaths due to pneumonia and influenza are decreasing

Geographic Spread of Influenza as Assessed by State and Territorial

Epidemiologists – state reporting

:

– Widespread: 5 states

Regional: 13 states

– Local: 15 states + DC

Sporadic: 16 states

None: 1 state

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

U.S. WHO/NREVSS Collaborating Laboratories Summary, 2008-09

0

500

1000

1500

2000

2500

3000

3500

1

0

/4

1

0

/1

8

1

1

/1

1

1

/1

5

1

1

/2

9

1

2

/1

3

1

2

/2

7

1

/1

0

1

/2

4

2

/7

2

/2

1

3

/7

3

/2

1

4

/4

4

/1

8

5

/2

5

/1

6

5

/3

0

6

/1

3

6

/2

7

7

/1

1

7

/2

5

8

/8

8

/2

2

Week ending

N

u

m

b

e

r

o

f

Po

si

ti

ve

Sp

e

ci

m

e

n

s

-2

2

6

10

14

18

22

26

30

34

38

42

46

50

Pe

rce

n

t

P

o

si

ti

ve

A(H1N1-Sw ine)

A(Could not be subtyped)

A(H3)

A(H1)

A(Unknow n)

B

Percent Positive

* Percentage of all positive
influenza specimens that
are Novel Influenza
A(H1N1) or Influenza A
(unable to subtype) for the
week indicated

22 labs reporting
for current week

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

Percent of Specimens Positive for Influenza Reported by WHO and NREVSS

Labs: Novel Influenza A(H1N1) vs. Seasonal Influenza, by Week

0

5

10

15

20

25

30

10

/4

10

/1

8

11

/1

11

/1

5

11/

29

12/

13

12

/27 1/1

0

1/2

4

2/

7

2/

21

3/

7

3/

21

4/

4

4/1

8

5/

2

5/

16

Week Ending Date

P

e

rcen

t P

o

sitive

All Flu

Seasonal Flu

Novel Influenza A(H1N1)

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

Percentage of Visits for Influenza-like Illness (ILI) Reported by

the US Outpatient Influenza-like Illness Surveillance Network (ILINet),

National Summary 2008-09 and Previous Two Seasons

NOTE: Week ending dates vary by influenza season

*Preliminary ILI data for week 19, as of May 22, 2009 (n=950 weekly ILI reports received from 49 states)

There was no week 53 during the 2006-07 and 2007-08 seasons, therefore the week 53 data point for those seasons is an average of weeks 52 and 1.

0

1

2

3

4

5

6

7

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

2006-07†

2007-08†

2008-09

National Baseline

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

Current Influenza Surveillance – ILINet Regions I-III

Region II - NJ, NY

0

2

4

6

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region III - DE, DC, MD, PA, VA, W V

0

1

2

3

4

5

6

7

8

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region I - CT, ME, MA, NH, RI, VT

0

1

2

3

4

5

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

NOTE: Scales differ between regions

NOTE: There was no week 53 during the 2006-07 and 2007-08 seasons, therefore the week 53 data point for those seasons is an average of weeks 52 and 1.

2006-07

2007-08

2008-09

Baseline

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

Current Influenza Surveillance – ILINet Regions IV-VI

Region IV - AL, FL, GA, KY, MS, NC, SC, TN

0

1

2

3

4

5

6

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region V - IL, IN, MI, MN, OH, WI

0

2

4

6

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region VI - AR, LA, NM, OK, TX

0

2

4

6

8

10

12

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

NOTE: Scales differ between regions

NOTE: There was no week 53 during the 2006-07 and 2007-08 seasons, therefore the week 53 data point for those seasons is an average of weeks 52 and 1.

2006-07

2007-08

2008-09

Baseline

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Epidemiology/Surveillance

Novel Influenza A (H1N1) - 26 May 2009

Current Influenza Surveillance – ILINet Regions VII-X

Region X - AK, ID, OR, WA

0

2

4

6

8

10

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region IX - AZ, CA, HI, NV

0

2

4

6

8

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region VIII - CO, MT, ND, SD, UT, W Y

0

1

2

3

4

5

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

Region VII - IA, KS, MO, NE

0

2

4

6

8

10

/4

10

/1

8

11

/1

11

/1

5

11

/2

9

12

/1

3

12

/2

7

1/

10

1/

24

2/

7

2/

21

3/

7

3/

21

4/

4

4/

18

5/

2

5/

16

Week Ending Dates

%

o

f

V

is

it

s

f

o

r

IL

I

NOTE: Scales differ between regions

NOTE: There was no week 53 during the 2006-07 and 2007-08 seasons, therefore the week 53 data point for those seasons is an average of weeks 52 and 1.

2006-07

2007-08

2008-09

Baseline

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BioSense

Percentage of Emergency Department Visits for Patient-reported ILI, Weekly

Trends, 10/07/2006 to 05/23/2009*: U.S.

* Note: Week ending 05/23/2009 includes data from 05/17/2009 to 05/21/2009 only

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Percentage of BioSense Emergency Department Visits for Patient-reported ILI,

Weekly Trends by Federal Region,

10/04/2008 to 05/23/2009*: U.S.

* Note: Week ending 05/23/2009 includes data from 05/17/2009 to 05/21/2009 only

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International

Novel Influenza A (H1N1) - 26 May 2009

WHO global case count: 12,515 confirmed cases in 46 countries*

– New countries with confirmed cases:

Honduras, Iceland,

Kuwait

– Countries with highest confirmed case count after the US and

Mexico:

• Canada: 805 ( 86 in last 24 hours)

• Japan: 345 ( 24 in last 24 hours)

• Spain: 133 ( 7 in last 24 hours)

• UK: 122 ( 5 in last 24 hours)

– Cases in Kuwait are first to be reported in EMRO region; more

cases

*Note: WHO case counts are current as of 05/25/09, 11:00 pm EDT


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