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. 2015 Dec 25;8(1):6. doi: 10.3390/v8010006

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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(A) The chemical structure of quercetin; (B) Validation of the protection of MDCK cells from influenza A/Puerto Rico/8/34 (H1N1) infection by quercetin. Original magnification, 40 ×. (C,D) The inhibitory effect of quercetin on the influenza A/Puerto Rico/8/34 (H1N1) HA mRNA expression in MDCK cells and A549 cells were detected by quantitative real-time PCR at 24 h post-infection. ** p < 0.05.

(A) The chemical structure of quercetin; (B) Validation of the protection of MDCK cells from influenza A/Puerto Rico/8/34 (H1N1) infection by quercetin. Original magnification, 40 ×. (C,D) The inhibitory effect of quercetin on the influenza A/Puerto Rico/8/34 (H1N1) HA mRNA expression in MDCK cells and A549 cells were detected by quantitative real-time PCR at 24 h post-infection. ** p < 0.05.