Appendix 1—figure 16. Seroprevalence estimates disaggregated by age and sex for the eight cities.

As in Figure 2D, three seroprevalence estimates are shown: (i) crude seroprevalence; (ii) seroprevalence adjusted for sensitivity, specificity, and reweighted by age and sex, but not corrected for seroreversion; and (iii) adjusted seroprevalence estimated by our seroreversion corrected model (continuous curves), which accounts for seroreversion in addition to sensitivity, specificity, and age-sex distribution. This seroprevalence estimate consists in the sum of infections and reinfections among seronegative donors; hence, it can be larger than 100%.