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Correlations of (a) binding ELISA titers, (b) pseudovirus NAb titers, and (c) live virus NAb titers at week 2 and week 4 with log peak sgRNA copies/swab in NS following challenge. Red lines reflect the best linear fit relationship between these variables. P and R values reflect two-sided Spearman rank-correlation tests. n=52 biologically independent animals.
