A) Excess all-cause deaths; B) COVID-19 case fatalities; and C) case incidence data for eight states in Peru that deployed mass ivermectin (IVM) treatments early in their pandemic spread (blue) and for Lima, which deployed IVM treatment four months later (red).D) Excess deaths for nine states having mass IVM distributions in a short period through national operation "MOT" (see results section for sources).• MOT start date; ▲peak deaths; ■ day of peak deaths + 30 days.Junin (yellow) distributed IVM to health centers beginning on July 22, 13 days before MOT start.Population-weighted mean deaths for these nine states dropped sharply, -74% at +30 days, beginning (except for Junin) 1 to 11 days after MOT start.All y values are 7-day moving averages, ages ≥ 60.