Sentinel System as the Main Influenza Surveillance Tool


Age-group (years)

Influenza detections; n (%)

ILI detections; n (%)

0–4

75 (12.4)

6 (25.0)

5–9

145 (24.1)

1 (4.2)

10–14

33 (5.5)

0 (0)

15–25

53 (8.8)

4 (16.7)

26–44

181 (30.0)

7 (29.2)

45–64

92 (15.3)

6 (25.0)

>65

24 (4.0)

0 (0)



Positive samples were evaluated in the seven age-group division. The majority of confirmed influenza viruses were observed in the group of persons aged 26–44 – 181 (30.0%) cases and in children aged 5–9 – 145 (24.1%) cases, and the least in those aged over 65 (4.0%) (Table 1). Influenza virus type B predominated in the youngest groups of 0–4, 5–9, and 10–14 years of age, as opposed to subtype A/H1N1/pdm09 that predominated in the other age-groups (Table 2).


Table 2
The number of confirmed cases of influenza and influenza-like viruses in seven age-groups in the 2015/2016 epidemic season in Poland










































































































































































Age-group (years)

Aa

A/H1N1/pdm09

A/H1N1

A/H3N2

A total

B

A+B Total

ADV

RSV

PIV 1

PIV 2

PIV 3

hCoV

RhV

hMPV

Total ILI

0–4

1

32

0

0

33

42

75

0

4

0

1

1

0

0

0

6

5–9

6

32

0

1

39

106

145

0

0

0

0

1

0

0

0

1

10–14

0

6

0

0

6

27

33

0

0

0

0

0

0

0

0

0

15–25

10

19

0

0

29

24

53

0

2

0

0

2

0

0

0

4

26–44

9

96

0

0

105

76

181

2

2

0

0

2

1

0

0

7

45–64

9

70

0

0

79

13

92

1

2

2

0

1

0

0

0

6

>65

3

11

0

0

14

10

24

0

0

0

0

0

0

0

0

0

Total no of detections

38

266

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Jul 30, 2017 | Posted by in RESPIRATORY | Comments Off on Sentinel System as the Main Influenza Surveillance Tool
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