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. 2014 Jun 17;9(6):e99322. doi: 10.1371/journal.pone.0099322

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© 2014 Duan et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

HI antibody responses to the (wt) AnHui virus after intramuscular vaccination with 7.5, 15, 30, or 45 µg (HA levels) of H7N9/PR8 split vaccine, in 200-µl volumes. Serum samples were collected on day 0; 2 weeks after priming; and 2, 4, and 8 weeks after boosting. 2WPD1: 2 weeks post-vaccination dose 1. 2WPD2: 2 weeks post-vaccination dose 2; 4WPD2: 4 weeks post-vaccination dose 2; 8WPD2: 8 weeks post-vaccination dose 2. The lower limit of detection is indicated by the dashed horizontal line.