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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