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. 2018 Jun 27;10(7):346. doi: 10.3390/v10070346

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© 2018 by the authors.

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

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The anti-porcine epidemic diarrhea (PEDV) spike (S)-specific fecal IgA levels in piglets after S-Bac or S1-Bac immunizations. The mucosal IgA levels of pigs were evaluated every two weeks at day 0 (pre-priming), day 14 (2 weeks post-priming) and day 28 (2 weeks post-boosting) from rectal swabs by using PEDV S-based ELISA. The data is presented as mean OD values from five pigs. The error bars represent the SD values of each group at different time points. The solid line with square icons and the gray line with round icons represent the climbing trend of IgA level in the S-Bac group and S1-Bac group, respectively. The IgA levels in the control group is expressed with the dotted line with triangle icon.