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. 2021 Nov 12;10(1):2098–2112. doi: 10.1080/22221751.2021.1999778

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© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

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 cited.

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Figure 7. — Virus growth curves and polymerase activity of two H9N2 viruses. Virus growth curves in MDCK (A), A549 (B), and CEF (C) cells. The dashed lines indicate the lower limit of detection. Data shown are mean ± SD for three independent experiments, and significance was assessed with a two-tailed unpaired Student’s t-test. (D) Polymerase activity of WD/11452/19 and CK/98/18 in 293 T cells. All of the data were normalized to the activity of the WD/11452/19 sample. Data shown are the mean polymerase activity ± standard deviation (n = 3). Statistical analysis was performed by using one-way ANOVA with GraphPad Prism 8 software. *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001; ns, not significant.