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. 2008 Apr 23;3(4):e1993. doi: 10.1371/journal.pone.0001993

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Roukens 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.

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Comparison of reciprocal serum dilutions, of serum obtained 4 weeks after vaccination, at which 80% VN occurred between positive and negative YF-17D RNA detection by RT-PCR in primary vaccinated participants (N = 24). Bars represent the median reciprocal serum dilution. VN = Virus neutralization.