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. 2014 Aug 19;9(8):e103787. doi: 10.1371/journal.pone.0103787

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Number of pigs infected was 10 for strains 12939, SW140, D74, 84-15995, Nagasaki, SW114, and SH0165, 8 for strain 29755, and 7 for strains MN-H, 174, and H465.