Table 2.
Annual number of influenza viruses isolated in two WHO NICs and collaborating Regional Base Laboratories for the period from 2005–2006 to 2011–2012
| Season | Number of Investigated patients | Influenza viruses isolated | Type/subtype of influenza virus
|
||||
|---|---|---|---|---|---|---|---|
| A(H1N1) | A(H3N2) | B | A(H1N1)pdm | Total | |||
| 2005–2006 | 7372 | Number | 68 | 335 | 181 | 0 | 584 |
| Percent* | 12% | 57% | 31% | 0 | 100% | ||
| 2006–2007 | 12513 | Number | 315 | 345 | 181 | 0 | 841 |
| Percent | 37% | 41% | 22% | 0 | 100% | ||
| 2007–2008 | 11807 | Number | 356 | 247 | 405 | 0 | 1008 |
| Percent | 35% | 25% | 40% | 0 | 100% | ||
| 2008–2009 | 14234 | Number | 316 | 469 | 171 | 2 | 958 |
| Percent | 33% | 49% | 18% | 0,0% | 100% | ||
| 2009–2010 | 11406 | Number | 0 | 0 | 187 | 709 | 896 |
| Percent | 0 | 0 | 21% | 79% | 100% | ||
| 2010–2011 | 11831 | Number | 0 | 65 | 383 | 521 | 969 |
| Percent | 0 | 7% | 40% | 54% | 100% | ||
| 2011–2012 | 8008 | Number | 0 | 391 | 192 | 8 | 591 |
| Percent | 0 | 66% | 32% | 1% | 100% | ||
*
percent from total number of viruses isolated is indicated