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Number of influenza strains isolated from IAV-positive samples (by rRT-PCR).
| Year | Total # of swabs | IAV positive swabs | Number of isolated strains (subtype) |
| 2014 | 100 | 62, of these 15 A(H1N1)pdm09, 18 A(H3N2) | 3 H1N1pdm09 5 H3N2 |
| 2016 | 111 | − | − |
| 2017 | 70 | 6, all H1 | 3 H1N2 |
| 2018 | 25 | − | − |
| 2019 | 100 | 8, all H1 | 2H1pdm09 3H1avN2 |
| 2020 | 21 | − | − |
| Total | 427 | 76 | 16 |
av—avian lineage of swine influenza viruses.
