Figure 3.

Detection of exposure to representative specificities. Representative plots of sensitivity and specificity for detecting exposure at various levels (f; see Methods for details): (a) Streptococcus pneumoniae serotype 6B and (b) S. pneumoniae ser. 26F. In general sensitivities reached between 0.7 and 0.8 when repertoires were enriched to at least 5 percent (f = 0.05), and specificities reached between 0.95 and 1.