Weekly Respiratory Report · 2020. 11. 14. · Page 2 Division of Public Health Respiratory Virus...

Wisconsin Department of Health Services | Division of Public Health

Bureau of Communicable Diseases | Communicable Diseases Epidemiology

Section www.dhs.wisconsin.gov/dph/bcd.htm | [email protected]

RESPIRATORY VIRUS SURVEILLANCE REPORT

Week 46, Ending November 14, 2020

P-02346

https://www.dhs.wisconsin.gov/dph/bcd.htmmailto:[email protected]

Division of Public Health Respiratory Virus Surveillance Report Week 46: Ending November 14, 2020

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 46, 2020 October 1, 2020

to present

Wisconsin 0 0

Nationwide 0 0

ILI: INSUFFICIENT DATA

AT-A-GLANCE:

Predominant Viruses of the Week: Rhino/enterovirus and SARS-CoV-2 (virus causing COVID-19)

Current Alerts:

Influenza activity remains extremely low statewide and

nationally.

Additional data on SARS-CoV-2 (the virus causing

COVID-19) trends in Wisconsin can be found at: https://www.dhs.wisconsin.gov/covid-19/data.htm

http://www.cdc.gov/flu/weekly/https://www.dhs.wisconsin.gov/covid-19/data.htm


INFLUENZA AND PNEUMONIA-ASSOCIATED MORTALITY

Influenza and Pneumonia Deaths, Wisconsin

Influenza- and pneumonia-associated deaths by influenza season year and week, Wisconsin

Influenza season week

Influenza-

associated

deaths (I)

Pneumonia-

associated

deaths (P)

Percent I+P of

all deaths

Baseline I+P

of all deaths

Threshold I+P

of all deaths

44 0 161 11.2% 4.6% 5.4%

45 0 211 13.6% 4.8% 5.6%

46

Preliminary Data 0 196 14.8% 4.9% 5.7%

Seasonal total 0 967 10.3% NA NA

Data source: DPH, Office of Health Informatics

Influenza- and pneumonia-associated deaths by most recent influenza season week,

Wisconsin, 2020-2021 season

3%

5%

7%

9%

11%

13%

15%

17%

20

16-4

0

20

17-0

2

20

17-1

6

20

17-3

0

20

17-4

4

20

18-0

6

20

18-2

0

20

18-3

4

20

18-4

8

20

19-1

0

20

19-2

4

20

19-3

8

20

19-5

2

20

20-1

4

20

20-2

8

20

20-4

2

20

21-0

3

Percent of deaths associated with

influenza and pneumonia

Influenza season year-week

Percent of deaths associated with influenza and pneumonia Baseline Threshold

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


Wisconsin positive influenza results and subtypes by PCR

Cumulative number of positive influenza PCR tests by subtype September 1, 2020 to present

WISCONSIN LABORATORY SURVEILLANCE

FOR RESPIRATORY VIRUSES BY PCR

0%

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

0

1

2

3

4

5

6

7

8

9

10

10/3 10/31 11/28 12/26 1/23 2/20 3/20 4/17

% P

osi

tive

by

PC

R

Nu

mb

er o

f p

osi

tive

det

ecti

on

s

Week ending

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

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

43% 57%

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

Total positive (n) 0 0 6 0 0 8 14

% of total positive 0% 0% 43% 0% 0% 57% 100%

Influenza A: Influenza B:Total


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 6823 5 0.1% 0 0 1 0 0 4

Respiratory virus Tested Positive

(n)

Positive

(%) Parainfluenza 1 Parainfluenza 2 Parainfluenza 3 Parainfluenza 4

Parainfluenza 902 0 0% 0 0 0 0

Respiratory virus Tested Positive (n) Positive (%) CoV 229E CoV OC43 CoV NL63 CoV HKU1

Coronavirus (seasonal) 40 0 0% 0 0 0 0

Respiratory virus Tested Positive (n) Positive (%)

RSV 1073 0 0%

Human metapneumovirus 910 0 0%

Rhino-enterovirus 846 51 6.0%

Adenovirus 40 0 0%

Week 46: Ending on November 14, 2020

0%

5%

10%

15%

20%

9/5 9/12 9/19 9/26 10/3 10/10 10/17 10/24 10/31 11/7 11/14 11/21

% P

osi

tive

by

PCR

(3-w

eek

mo

vin

g av

erag

e)

Week ending

― Influenza

― RSV― hMPV

- - Rhino-Entero― Adenovirus- - Parainfluenza

- - Coronavirus (seasonal)


WISCONSIN STATE SUMMARY ILI activity trend analysis by influenza season, Wisconsin

Influenza-associated hospitalizations, Wisconsin Electronic Disease Surveillance System September 1, 2020 to present

Reported cumulative influenza-associated hospitalizations by influenza season, Wisconsin

0%

1%

2%

3%

4%

5%

6%

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)

Influenza season week

― 2016-17

- - 2017-18- - 2018-19

― 2019-20― 2020-21

A (2009

H1N1)

A

(H3N2)

A

(Unknown)B

Not

reported


ILI ACTIVITY TREND ANALYSIS

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-week moving average (average % ILI)

Wisconsin

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%

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


Northeastern Region

Northern Region


ILI ACTIVITY TREND ANALYSIS

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


Southeastern Region

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


Southern Region

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


Western Region


Influenza vaccine composition 2020-2021:

Trivalent (three-component) egg-based vaccines are recommended to contain:

A/Guangdong-Maonan/SWL1536/2019 (H1N1)pdm09-like virus (updated)

A/Hong Kong/2671/2019 (H3N2)-like virus (updated)

B/Washington/02/2019 (B/Victoria lineage)-like virus (updated)

Quadrivalent (four-component) egg-based vaccines, which protect against a second lineage of B viruses, are recommended to contain: the

three recommended viruses above, plus B/Phuket/3073/2013-like (Yamagata lineage) virus.

Cell- or recombinant-based vaccines are recommended to contain:

A/Hawaii/70/2019 (H1N1)pdm09-like virus (updated)

A/Hong Kong/45/2019 (H3N2)-like virus (updated)

B/Washington/02/2019 (B/Victoria lineage)-like virus (updated)

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

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

influenza vaccine, 2020-2021 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).

34%

42%

70%

0% 50% 100%

This season so far

2019-2020 Total Vaccinated

Healthy People 2020 GoalHealthy People 2020 Goal

2019-2020Total Vaccinated

2020-2021 as of this week

As of this week, the percent of individuals who have received at least one influenza vaccine in Wisconsin is 3% higher than this time last year.


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).

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

vaccine, by race and ethnicity and region, 2020-2021 influenza season

Southeastern Western Southern

Total

Non-Hispanic

Hispanic

White

Black

Asian

American Indian/

Alaska-Native

All of Wisconsin Northeastern Northern

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

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

2015-2016 2016-2017 2017-2018 2018-2019 2019-2020 2020-2021

18%

24%

16%

31%

18%

32%

34%

13%

22%

12%

29%

18%

30%

31%

24%

26%

16%

29%

19%

30%

38%

11%

24%

17%

32%

17%

34%

34%

18%

22%

13%

31%

17%

32%

33%

22%

21%

13%

33%

19%

34%

35%

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