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Table 3 Influenza activity (positivity, circulating types and subtypes) among patients sampled during outbreak investigations in Ethiopia, 2009–2015

From: Epidemiology of influenza in Ethiopia: findings from influenza sentinel surveillance and respiratory infection outbreak investigations, 2009–2015

Characteristic

Samples Collected

Samples Tested

Influenza Positive

Influenza types and subtypes

A

A(H1N1) pdm2009

A(H3N2)

B

N

N (%)a

N (%)b

N (%)

N (%)c

N (%)c

N (%)c

All cases

212

208 (98)

58 (28)

56 (97)

46 (79)

10 (17)

2 (3)

Year

 2009

123

121 (98)

28 (23)

27 (96)

19 (68)

8 (29)

1 (4)

 2010

82

81 (99))

29 (36)

28 (97)

27 (93)

1 (3)

1 (3)

 2011

2

2 (100)

1 (50)

1 (100)

0 (0)

1 (100)

0 (0)

 2012

5

4 (80)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 2013

 2014

 2015

Age

  < 2

8

6 (75)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 2–4

5

5 (100)

1 (20)

1 (100)

1 (100)

0 (0)

0 (0)

 5–14

25

25 (100)

7 (28)

7 (100)

7 (100)

0 (0)

0 (0)

 15–49

150

149 (99)

47 (32)

45 (96)

35 (74)

10 (21)

2 (4)

 50–64

15

14 (93)

2 (14)

2 (100)

2 (100)

0 (0)

0 (0)

  > =65

4

4 (100)

1 (25)

1 (100)

1 (100)

0 (0)

0 (0)

 Missed

5

5 (100)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

Sex

 Female

109

107 (98)

30 (28)

30 (100)

26 (87)

4 (13)

0 (0)

 Male

103

101 (98)

28 (28)

26 (93)

20 (71)

6 (22)

2 (7)

Site

 Nedjo

5

4 (80)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 Arsi

4

4 (100)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 AU

3

2 (67)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 Bole Air Port

3

3 (100)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

 ECA

72

71 (99)

15 (21)

14 (93)

11 (73)

3 (20)

1 (7)

 Gonder

24

24 (100)

8 (33)

8 (100)

8 (100)

0 (0)

0 (0)

 Metu

22

21 (95)

16 (76)

16 (100)

16 (100)

0 (0)

0 (0)

 St. Paul

29

29 (100)

6 (21)

6 (100)

5 (83)

1 (17)

0 (0)

 St. Peter

50

50 (100)

13 (26)

12 (92)

6 (46)

6 (46)

1 (8)

  1. aDenominator is the number who were sampled
  2. bDenominator is the number who were tested
  3. cDenominator is the number who tested positive