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. 2020 Sep 8;73(3):e550–e558. doi: 10.1093/cid/ciaa1345

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© The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 4. — Correlation of antibody levels with fever duration, viremic period, and maximum viral loads during infection period. Correlations of antibody levels (anti-S IgG titer, ppNT₅₀, and PRNT₅₀ in sera collected at 1 year after infection) with the indicated parameters observed during infection periods in 50 subjects (G-I: n = 11, G-II: n = 23, and G-III: n = 16) were assessed by linear regression (black line) and Spearman’s rank test (r_s and P value). Abbreviations: IgG, immunoglobulin G; Max., maximum.