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Table 2 Descriptive results of the influenza-like illness surveillance during three influenza seasons in Tunisia, 2012–2015

From: Evaluation of the influenza-like illness surveillance system in Tunisia, 2012–2015

  2012–2013 2013–2014 2014–2015 Total
Number of outpatients 2.023.942 2.196.715 2.165.964 6.386.621
Number of ILI cases 170.623 156.513 158.085 485.221
Samples tested 924 514 1038 2476
Proportion of positive samples for Influenza (%) 37.4 12.1 28.0 27.6
Virus A(H3N2) (%) 6.1 96.8 15.5 18.4
Virus A(H1N1) pdm2009 (%) 50.1 1.6 39.2 42.9
Virus B (%) 38.3 1.6 45.3 38.7
Unsubtyped viruses (%) 5.5 / / /