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Table 1 Selection of patients and results of RT-PCR

From: Influenza epidemiology and influenza vaccine effectiveness during the 2014鈥�2015 season: annual report from the Global Influenza Hospital Surveillance Network

听

St. Petersburg

Moscow

Czech Republic

Turkey

Beijing

Valencia

Total

Category

n

%

n

%

n

%

n

%

n

%

n

%

n

%

Screened admissions

3164

听

1934

听

123

听

1409

听

1425

听

12,496

听

20,551

听

Exclusion criteria

鈥僋on resident

21

0.7

95

4.9

12

9.8

73

5.2

5

0.4

50

0.4

256

1.2

鈥僆苍蝉迟颈迟耻迟颈辞苍补濒颈蝉别诲

14

0.4

14

0.7

2

1.6

17

1.2

2

0.1

800

6.4

849

4.1

鈥働revious discharge <30听days

31

1.0

51

2.6

8

6.5

216

15.3

13

0.9

2283

18.3

2602

12.7

鈥僓nable to communicate

20

0.6

47

2.4

2

1.6

125

8.9

0

0.0

782

6.3

976

4.7

鈥僋ot giving consent

100

3.2

32

1.7

14

11.4

47

3.3

15

1.1

504

4.0

712

3.5

鈥僋o ILI symptoms 鈮�5听years of age

19

0.6

25

1.3

1

0.8

131

9.3

18

1.3

2903

23.2

3097

15.1

鈥傾dmission within 7听days of symptoms onset

181

5.7

150

7.8

4

3.3

110

7.8

44

3.1

745

6.0

1234

6.0

鈥働revious influenza infection

1

0.0

0

0.0

0

0.0

7

0.5

0

0.0

1

0.0

9

0.0

鈥僌nset of symptoms to swab >9听days

0

0.0

1

0.1

0

0.0

2

0.1

0

0.0

1

0.0

4

0.0

鈥僑ample inadequate

0

0.0

0

0.0

0

0.0

0

0.0

0

0.0

5

0.0

5

0.0

鈥僑ample lost

0

0.0

0

0.0

0

0.0

0

0.0

1

0.1

1

0.0

2

0.0

鈥僐ecruited outside periods with continuous influenza positive admissions

31

1.0

115

5.9

1

0.8

65

4.6

178

12.5

764

6.1

1154

5.6

Included with valid laboratory results

2715

85.8

1400

72.4

79

64.2

614

43.6

1149

80.6

3657

29.3

9614

46.8

RT-PCR result

鈥僆nfluenza negative

2113

77.8

966

69.0

20

25.3

543

88.4

875

76.2

2920

79.8

7437

77.4

鈥僆nfluenza positive

602

22.2

434

31.0

59

74.7

71

11.6

274

23.8

737

20.2

2177

22.6

鈥僑ubtype and lineagea

鈥冣赌倾(贬1狈1)辫诲尘09

47

7.8

30

6.9

7

11.9

26

36.6

1

0.4

10

1.4

121

5.6

鈥冣赌倾(贬3狈2)

267

44.3

163

37.6

33

55.9

6

8.5

163

59.5

611

82.9

1243

57.1

鈥冣�傾 not subtyped

48

8.0

9

2.1

2

3.3

0

0.0

0

0.0

47

6.4

106

4.9

鈥冣�傿/Yamagata lineage

258

42.9

175

40.3

16

27.1

0

0.0

109

39.8

65

8.8

623

28.6

鈥冣�傿/Victoria lineage

0

0

10

2.3

0

0

0

0.0

1

0.4

0

0.0

11

0.5

鈥冣�傿 not subtypedb

0

0

52

12.0

2

3.4

39

54.9

0

0.0

4

0.5

97

4.5

  1. Abbreviations: ILI, influenza-like disease; RT-PCR, reverse transcriptase-polymerase chain reaction
  2. aBecause there were 24 mixed infections, each involving two different influenza viruses, the sum by strain may be greater than the number of patients included with lab results. Percentages are reported by total of influenza-positive cases
  3. bFor Turkey and Valencia, all B not subtyped were assumed to be B/Yamagata lineage based on virus circulation at these sites. This assumption was not applied for Moscow because of a mixed pattern of influenza B circulation
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