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Table 1 Frequency of different influenza strains in analyzed Swiss samples

From: Reconstructing the 2003/2004 H3N2 influenza epidemic in Switzerland with a spatially explicit, individual-based model

Season

A H1N1

A H1N2

A H3N2

B

Total

 

Cases

proportion

cases

proportion

cases

proportion

cases

proportion

 

1995/96

146

51%

 

0%

109

38%

30

11%

285

1996/97

2

1%

 

0%

234

68%

109

32%

345

1997/98

5

2%

 

0%

321

98%

 

0%

326

1998/99

 

0%

 

0%

83

37%

143

63%

226

1999/00

 

0%

 

0%

115

100%

 

0%

115

2000/01

110

89%

 

0%

1

1%

13

10%

124

2001/02

 

0%

1

0%

103

44%

130

56%

234

2002/03

1

1%

5

3%

125

68%

52

28%

183

2003/04

1

0%

 

0%

225

99%

2

1%

228

2004/05

35

12%

 

0%

225

75%

41

14%

301

2005/06

9

4%

 

0%

13

6%

183

89%

205

  1. The data has kindly been provided by the Swiss Federal Office of Public Health.