Weekly Respiratory Report - dhs.wisconsin.gov · page 2 division of puli health respiratory virus surveillane report week 13: ending march 30, 2019

RESPIRATORY VIRUS SURVEILLANCE REPORT

Wisconsin Department of Health Services | Division of Public Health

Bureau of Communicable Diseases | Communicable Diseases Epidemiology Section

dhs.wi.gov/dph/bcd.htm | [email protected]

Week 14: Ending April 6, 2019

P-02346

dhs.wi.gov/dph/bcd.htm

mailto:[email protected]

Page 2

DIVISION OF PUBLIC HEALTH RESPIRATORY VIRUS SURVEILLANCE REPORT WEEK 14: ENDING April 6, 2019

STATE OF WISCONSIN REGION V OF US

(WI, MN, IL, MI, OH, IN)

UNITED STATES

ILI: BELOW BASELINE ILI: HIGH LEVELS ILI: MODERATE LEVELS

INFLUENZA-ASSOCIATED

PEDIATRIC DEATHS REPORTED:

INFLUENZA LIKE ILLNESS (ILI) ACTIVITY

For National US influenza surveillance statistics visit: www.cdc.gov/flu/weekly/

Week 14, 2019

October 1, 2018 to present

Wisconsin 0 2

Nationwide 4 86

ILI: INSUFFICIENT DATA

AT-A-GLANCE:

Weekly Respiratory Report Description

Predominant Virus of the Week: Influenza A/H3 is the predominant virus this week.

CURRENT ALERTS:

Influenza activity is lowing declining

statewide.

257 flu-associated hospitalizations were

reported this week.

http://www.cdc.gov/flu/weekly/

https://www.dhs.wisconsin.gov/influenza/weekly-report-description.pdf

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Influenza and Pneumonia Deaths, Wisconsin

INFLUENZA AND PNEUMONIA-ASSOCIATED MORTALITY

Influenza-associated deaths by week and influenza season, Wisconsin

Week 14, 2019 Cumulative, 2018-2019 season

Age group

(years)

Infl

uen

za

(I)

Pneumonia

(P)

Percent I+P of

all deaths

Influenza

(I)

Pneumonia

(P)

Percent I+P of

all deaths

0-4 0 0 0.0% 2 5 2.4%

5-17 0 1 33.3% 0 3 3.1%

18-49 0 2 4.4% 11 69 3.6%

50-64 2 4 4.8% 19 214 4.6%

65+ 5 47 7.4% 55 1497 5.8%

All ages 7 54 7.0% 86 1788 5.5%

Data source: DPH, Office of Health Informatics

0

10

20

30

40

50

60

70

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Num

ber o

f inf

luen

za-a

sso

ciat

ed d

eath

s

Influenza season week

― 2014-15

- - 2015-16- - 2016-17

― 2017-18― 2018-19

Influenza and pneumonia-associated deaths by age group, 2018-2019 season September 30, 2018 to April 6, 2019

https://www.dhs.wisconsin.gov/dph/ohi.htm

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Wisconsin positive influenza results and subtypes by PCR

Cumulative number of positive influenza PCR tests by subtype September 1, 2018 to present

WISCONSIN LABORATORY SURVEILLANCE

FOR RESPIRATORY VIRUSES BY PCR

0%

8%

16%

24%

32%

40%

0

500

1,000

1,500

2,000

2,500

9/1 9/29 10/27 11/24 12/22 1/19 2/16 3/16 4/13 5/11

% P

osi

tive

by

PC

R

Nu

mb

er

of

po

siti

ve d

ete

ctio

ns

Week ending

A (unknown subtype) A (H3N2 seasonal) A (H1N1) A (H3N2v)

B (unknown subtype) B (Victoria) B (Yamagata) Influenza % positive

96% 4%

A (2009 H1N1) A (H3N2) A (Unknown) B (Victoria) B (Yamagata) B (Unknown)

Total positive (n) 594 630 13230 9 23 592 15078

% of total positive 4% 4% 88% 0% 0% 4% 100%

Influenza A: Influenza B:Total

Page 5


Trends in respiratory virus activity by PCR

WISCONSIN LABORATORY SURVEILLANCE FOR

RESPIRATORY VIRUSES BY PCR

Respiratory virus Tested Positive

(n)

Positive

(%)

Influenza A Influenza B

H3N2 2009 H1N1 Unknown Victoria Yamagata Unknown

Influenza 4692 1260 26.9% 64 26 1089 2 1 78

Respiratory virus Tested

Positive

(n)

Positive

(%) Parainfluenza 1 Parainfluenza 2 Parainfluenza 3 Parainfluenza 4

Parainfluenza 786 35 4.5% 2 4 26 3

Respiratory virus Tested Positive

(n)

Positive

(%) CoV 229E CoV OC43 CoV NL63 CoV HKU1

Coronavirus (CoV) 398 28 7.0% 7 14 7 0

Respiratory virus Tested Positive (n) Positive (%)

RSV 1375 56 4.1%

Human metapneumovirus 807 43 5.3%

Rhino-enterovirus 765 49 6.4%

Adenovirus 398 1 0.3%

Week 14: Ending on April 6, 2019

0%

8%

16%

24%

32%

40%

2/23 3/2 3/9 3/16 3/23 3/30 4/6

% P

osi

tive

by

PC

R (

3-w

ee

k m

ovi

ng

ave

rage

)

Week ending

― Influenza

― RSV― hMPV

- - Rhino-Entero― Adenovirus- - Parainfluenza

- - Coronavirus

Page 6


WISCONSIN STATE SUMMARY

ILI activity trend analysis

Influenza and RSV trend analysis

Influenza rapid antigen tests RSV rapid antigen tests Influenza-like illness (ILI)

Tested Positive (n)

% Positive Tested Positive (n) % Positive ILI % Baseline Threshold Influenza A Influenza B Total

2191 488 54 542 24.7% 133 18 13.5% 2.7% 2.4% 3.6%

0%

1%

2%

3%

4%

5%

6%

7%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

Ave

rage

% IL

I

Week ending

Baseline Threshold 3 per. Mov. Avg. (Average % ILI)

0%

10%

20%

30%

40%

50%

60%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

% Positive by antigen detection

Week ending

3 per. Mov. Avg. (RSV) 3 per. Mov. Avg. (Influenza)

Page 7


WISCONSIN STATE SUMMARY

ILI activity trend analysis by influenza season, Wisconsin

Influenza-associated hospitalizations, Wisconsin Electronic Disease Surveillance System

September 1, 2018 to present

Reported cumulative influenza-associated hospitalizations by influenza season, Wisconsin

A (2009

H1N1)

A

(H3N2)

A

(Unknown)B

Not

reported

<1 44 5 35 2 2 6 2 0 0

1-4 88 3 3 70 4 8 16 4 0 0

5-17 102 2 3 78 5 14 16 2 0 0

18-49 462 40 16 358 21 27 95 33 31 2

50-64 776 86 41 595 27 27 163 45 0 0

65+ 1545 115 112 1194 77 47 217 56 0 0

Total 3017 251 175 2330 136 125 513 142 31 2

Postpartum

(≤6 weeks)

Age group

(years)

Total

reported

(n)

Influenza subtypeAdmitted

to ICU

Required

mechanical

ventilation

Pregnant

0

1500

3000

4500

6000

7500

4 5 6 7 8 9 10 11 12 13 14

Infl

ue

nza

-ass

oci

ate

d

ho

spit

aliz

ati

on

s, c

um

ula

tive

(n)


2014-2015

2015-2016

2016-2017

2017-2018

2018-2019

0%

1%

2%

3%

4%

5%

6%

7%

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Ave

rage

% IL

I (3

-wee

k m

ovi

ng

aver

age)


― 2014-15

- - 2015-16- - 2016-17

― 2017-18― 2018-19

Page 8


NORTHEASTERN REGION




Tested Positive (n)


987 203 27 230 23.3% 84 15 17.9% 2.6% 2.6% 4.0%

0%

1%

2%

3%

4%

5%

6%

7%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

Ave

rage

% IL

I

Week ending


0%

10%

20%

30%

40%

50%

60%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1


Week ending


Page 9


NORTHWESTERN REGION




Tested Positive (n)


386 81 3 84 21.8% 38 2 5.3% 2.5% 1.9% 3.2%

0%

1%

2%

3%

4%

5%

6%

7%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

Ave

rage

% IL

I

Week ending


0%

10%

20%

30%

40%

50%

60%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1


Week ending


Page 10


SOUTHEASTERN REGION




Tested Positive (n)


756 184 23 207 27.4% 8 0 0.0% 2.3% 2.9% 4.1%

0%

1%

2%

3%

4%

5%

6%

7%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

Ave

rage

% IL

I

Week ending


0%

10%

20%

30%

40%

50%

60%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1


Week ending


Page 11


SOUTHERN REGION




Tested Positive (n)


62 20 1 21 33.9% 3 1 33.3% 3.5% 2.1% 3.2%

0%

1%

2%

3%

4%

5%

6%

7%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1

Ave

rage

% IL

I

Week ending


0%

10%

20%

30%

40%

50%

60%

9/1 9/22 10/13 11/3 11/24 12/15 1/5 1/26 2/16 3/9 3/30 4/20 5/11 6/1


Week ending


Page 12


Influenza vaccine composition 2018-2019:

The trivalent vaccines for use in the 2018-2019 influenza season contain the following:

A/Michigan/45/2015 (H1N1)pdm09-like virus

A/Singapore/INFIMH-16-0019/2016 A(H3N2)-like virus (updated)

B/Colorado/06/2017-like (Victoria lineage) virus (updated)

It is recommended that quadrivalent vaccines containing two influenza B viruses contain the above three viruses and:

B/Phuket/3073/2013-like virus (B/Yamagata lineage)

Cumulative percentage of Wisconsin residents who received 1 or more doses of

influenza vaccine, 2018-2019 influenza season

SEASONAL INFLUENZA VACCINATION

Data source: All influenza vaccination rates presented were calculated using data from the Wisconsin

Immunization Registry (numerator) and Wisconsin population estimates (denominator).

39%

37%

70%

0% 50% 100%

This season so far

2017-2018 Total Vaccinated

Healthy People 2020 GoalHealthy People 2020 Goal

2017-2018Total Vaccinated

2018-2019 Season as of Week Ending 03/23/2019

During this week, the vaccination rates for the 2018-2019 Influenza vaccine season have been above the vaccination rates observed during the 2017-2018 season.

Page 13


Percentage of Wisconsin residents who received one or more doses of influenza

vaccine, by race and ethnicity and region, 2018-2019 influenza season

SEASONAL INFLUENZA VACCINATION

Percentage of Wisconsin residents who received one or more doses of influenza

vaccine, by age group and influenza season

Each season includes doses administered during the same time period (August 1 through May 3).

Northern Northeastern

12%

31%

24%

31%

27%

33%

35%

36%

36%

25%

36%

31%

37%

46%

Southeastern

23%

31%

22%

36%

30%

37%

39%

Western Southern

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0 1 to 4 5 to 17 18 to 49 50 to 64 65 plus All Ages

2014-2015 2015-2016 2016-2017 2017-2018 2018-2019 as of current week

25%

32%

24%

35%

28%

36%

39%Regional Total

Non-Hispanic

Hispanic

White

Black

Asian

All of Wisconsin

American Indian/

Alaska-Native 32%

29%

26%

37%

29%

38%

40%

25%

31%

24%

34%

28%

36%

38%

Documents

Weekly Respiratory Report - dhs.wisconsin.gov · page 2 division of puli health respiratory virus surveillane report week 13: ending march 30, 2019