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. 2019 May 2;12:248. doi: 10.1186/s13104-019-4280-6

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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. 1 — Temporal pattern of the isolation of non-polio enteroviruses and vaccine polioviruses in the cities of Yaounde and Douala from January 2016 to December 2017. The number of individual virus types (SL1: Sabin type 1; SL2: Sabin type 2; SL3: Sabin type 3; NPEV: non-polio enterovirus) isolated and culture negative samples are indicated for each months