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. 2020 Jul 29;70(9):744–758. doi: 10.1093/biosci/biaa067

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© The Author(s) 2020. Published by Oxford University Press on behalf of the American Institute of Biological Sciences.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — (a) Cassava mosaic disease in Tay Ninh, Vietnam, and (b) cassava brown streak disease in Mkuranga, Coast Province, Tanzania. Photographs: James Legg.