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. 2021 Nov 16;8:753297. doi: 10.3389/fvets.2021.753297

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Copyright © 2021 Huang, Chen, Long, Yang, Song, Liu, Li, Liang, Yu, Huang and Tang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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PCR identification results of some positive samples. 1, DNA molecular size marker; 2–10, Partial positive samples; 11, Positive control; 12, Negative control. Arrow indicates the position of the predicted DNA size.