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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.