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. 2019 Mar 20;16:6. doi: 10.1186/s12976-019-0102-8

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Comparison between observed and estimated age-specific proportions of infected individuals during 2009 influenza A (H1N1) pandemic. Age-specific proportions of infection, or the so-called population attack rate or final size, during the 2009 influenza A (H1N1) pandemic, illustrated by age. Estimates were obtained by imposing various assumptions of age-dependent contact patterns, including homogeneous (or random) mixing, separable mixing (i.e., contributions of contactor and contactee are separable), age-independent susceptibility (i.e., the contact matrix was used, but the entire next-generation matrix was assumed proportional to that matrix), and age-dependent susceptibility (i.e., contact matrix plus age-dependent susceptibility per contact were estimated)