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. 2014 May 16;11:91. doi: 10.1186/1743-422X-11-91

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Copyright © 2014 Chia et al.; licensee BioMed Central Ltd.

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 use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Detection of infectious viral progenies secreted into cell culture media. (A) A plaque assay was performed using spent culture media of the mock-infected SW480P and control cells. Different plaque morphologies were visible in the different samples. (B) A graphical representation of the number of plaques of less than 1 mm or in the range of 1-4 mm is shown.