n (%) | |||||
---|---|---|---|---|---|
2012/2013 | 2013/2014 | 2014/2015 | 2015/2016 | All seasons | |
RT-PCR result | N = 520 | N = 335 | N = 296 | N = 597 | N = 1748 |
RT-PCR result | |||||
Positivea | 253 (48.7) | 149 (44.5) | 155 (52.4) | 268 (44.9) | 825 (47.2) |
Negative | 267 (51.3) | 186 (55.5) | 141 (47.6) | 329 (55.1) | 923 (52.8) |
Influenza type | |||||
A(H1N1)pdm09 | 155 (61.3) | 13 (8.7) | 11 (7.1) | 182 (67.9) | 361 (43.8) |
A(H3N2) | 41 (16.2) | 100 (67.1) | 62 (40.0) | 21 (7.8) | 224 (27.2) |
B/Yamagata lineage | 6 (2.4) | 34 (22.8) | 66 (42.6) | 0 (0.0) | 106 (12.8) |
B/Victoria lineage | 10 (4.0) | 2 (1.3) | 5 (3.2) | 59 (22.0) | 76 (9.2) |
A not subtyped | 5 (2.0) | 0 (0.0) | 1 (0.6) | 2 (0.7) | 8 (1.0) |
B undetermined lineage | 36 (14.2) | 0 (0.0) | 10 (6.5) | 4 (1.5) | 50 (6.1) |