SD 2017/2018 Influenza Weekly Summary
Week Ending October 21 (Week 42)
Lab Confirmed
Cases

Oct 15-21

Season to
Date

Rapid Antigen Tests
(45) sites reporting

Type A, H1

0

0

Type A, H3

1

3

Total Tested

Type A,
Unspecified

2

4

Total Positive

Type B
Unspecified

1

B Yamagata

0

0

B Victoria

0

0

Total

4

8

Oct 15-21

Season to
Date

202

567

5
(4A/1B)

16
(14A/2B)

2.5%

2.8%

1
% Rapid Antigen Tests
Positive

Oct 15-21

Season to Date

Hospitalizations

1

1

Deaths

0

0

SD Influenza Geographic: Sporadic
SD Influenza Severity : Minimal
US Influenza Activity: http://www.cdc.gov/flu/weekly/fluactivitysurv.htm
International Flu Activity: http://www.cdc.gov/flu/weekly/intsurv.htm

3D Influenza Virus

South Dakota Influenza information:
http://doh.sd.gov/diseases/infectious/flu/

 SD 2011MB Influenza Weekly Summary
Week Ending October 21, 201? (Provisional Data)

 

 

 

 

 

 

 

 

 

 

 

 

 

 
   
    

 

 

 

 

 

 

 

 

 

 

 

 

 

    
  

  

 

 
         

 

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SD K-12 School
Absenteeism due to illness
Region

All

W

C

NE

SE

# Schools
Reporting

165

18

38

32

77

% Absent
due to
illness

1.6%

1.2%

1.7%

1.4%

2.2%

4 schools had > 5% absent due to illness and the
range was 0-11%

 ILInet Surveillance
• ILInet is an outpatient visit surveillance system where providers report total

number of patient visits and the number of patients that have Influenza Like Illness
(ILI). ILI, fever ≥ 100°F, PLUS cough and/or sore throat). Regional baseline 1.4%

• SD ILInet providers: Aberdeen (2); Beresford; Brandon; Brookings (2);
Canton; Chamberlain; Custer; Ipswich; Lead-Deadwood; Kennebec; Miller;
Milbank; Mitchell (2); Pierre; Rapid City; Redfield; Sioux Falls (10);
Spearfish; Sturgis; Vermillion; Watertown; and Winner

SD ILI Data for past 5 Weeks
WK

0-4

524

2549

5064

>64

Tot
ILI

Tot
PTS

%
ILI

10/07

15

31

12

5

23

86

7743

1.11%

10/14

17

37

9

1

4

68

7870

0.86%

10/21

13

26

7

0

1

47

4120

1.14%

 Influenza-like illness

Daily Syndromic Surveillance*

10%
9%
Percent of records with influenza-like illness

8%

Criteria: Influenza-like illness (ILI) Fever plus cough and/or sore throat
Chief complaint: Fever, cough and/or sore throat
Influenza diagnostic code ICD10: J09, J10, J11

7%
6%
5%
4%
3%
2%
1%
0%

Days of flu season
*Syndromic surveillance data is collected from 160 healthcare facilities in South Dakota

 South Dakota ILINet Weekly Surveillance % 2010-2018
1.14% for MMWR Week 42
Region 8 Baseline = 2.6%
5

2017/18
2013-14

2015/16
Baseline

2016/17
2012-13

2014/15

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e 4
r
c 3
e
n
t 2
1
0
40 42 44 46 48 50 52

2

4

MMWR Week

6

8

10 12 14 16 18

 2017-2018 In?uenza Season Cumulative number of
Con?rmed Cases, Hospitalizations, and Deaths (Provisional)

 

 

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