Distribution of influenza A (H3N2) cases in Canada 2018-2022, by age group

In Canada, over half of the seasonal influenza A (H3N2) cases during the 2021-2022 flu season corresponded to people aged 5 to 44 years. In previous years, the distribution of influenza A (H3N2) cases was higher among adults aged 65 and older, accounting for about 58 and 46 percent of all seasonal flu detections between 2018 and 2020. This statistic shows the by distribution of seasonal influenza A (H3N2) detections in Canada during the flu seasons 2018-2022, by age group.

在加拿大，2021-2022流感季节中，超过一半的季节性流感A（H3N2）病例对应于5至44岁的群体。在往年，流感A（H3N2）病例的分布中，65岁及以上的成年人所占比例较高，在2018至2020年间，约占所有季节性流感检测的58%和46%。此统计数据展示了加拿大在2018-2022年流感季节中季节性流感A（H3N2）检测的年龄分布情况。