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. 2016 Nov 18;13(4):867–876. doi: 10.1080/21645515.2016.1251537

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© 2017 The Author(s). Published with license by Taylor & Francis

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.

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Figure 1. — FluWatch surveillance system case-by-case data of laboratory confirmed influenza by season and virus subtype. Note: Data obtained from The Canadian FluWatch surveillance system unless otherwise indicated;^11-22 Data for 2008/09 and 2009/10 pandemic seasons have not been included for calculation of average influenza B incidence across seasons. ^†Data are based on aggregate cases for these years only. More sentinel laboratories report aggregate data then detailed data, therefore the case counts are expected to be higher. *Data obtained from FluWatch final cumulative weekly report in absence of a full annual report.^20-22