Table 1.
Characteristics of the influenza seasons from 2010/2011 to 2014/2015.
| Influenza Season | SPs (N) | Surveilled Population | Percentage of Surveilled Population (%) * | Week of Influenza Epidemic Peak | Cumulative ILI Rate (ILI Cases/100.000) | Respiratory Swabs Analysed | Positivity (%) ** | Dominant Influenza Virus |
|---|---|---|---|---|---|---|---|---|
| 2010–2011 | 839 | 1,079,753 | 2.38 | 2 | 2099.78 | 5482 | 45.00 | A(H1N1)pdm09 |
| 2011–2012 | 848 | 1,086,983 | 2.37 | 7 | 2232.49 | 5858 | 50.05 | A(H3N2) |
| 2012–2013 | 831 | 1,026,896 | 2.22 | 8 | 2181.79 | 5173 | 51.46 | B |
| 2013–2014 | 873 | 1,137,848 | 2.44 | 4 | 1906.30 | 5060 | 50.30 | A(H1N1)pdm09/A(H3N2) |
| 2014–2015 | 788 | 1,006,183 | 2.17 | 5 | 2477.57 | 5101 | 54.48 | A(H3N2) |
** Proportion of respiratory specimens positive for influenza; * Percentage of population under surveillance with respect to the total population of the autonomous community; ILI: influenza-like illness.