Figure 3.

Correlation between prevalence of chlamydial infection and prevalence of clinical activity in villages in Ethiopia treated with repeated mass antibiotic distributions. A, Pearson correlation coefficient before and during mass antibiotic treatments for 24 villages that received biannual treatments at months 0, 6, 12, and 18 (shaded region). Eight of these villages received two additional biannual mass antibiotic treatments at months 24 and 30. B, Pearson correlation coefficient at the final mass treatment and during one year of follow-up for all 24 villages. Error bars show bootstrapped 95% confidence intervals.