Regular use of ivermectin as prophylaxis for COVID-19 led up to 92% reduction in COVID-19 mortality rate in a dose-response manner: results of a prospective observational study of a strictly controlled population of 88,012 subjects among 223,128 participants.
Conclusion: Non-use of ivermectin was associated with a 12.5-fold increase in mortality rate and seven-fold increased risk of dying from COVID-19 compared to the regular use of ivermectin in a PSM comparison of a strictly controlled population. This dose-response efficacy reinforces the prophylactic effects of ivermectin against COVID-19.
https://www.researchgate.net/profile/Cadegiani-Flavio/publication/358386329_Regular_use_of_ivermectin_as_prophylaxis_for_COVID-19_led_up_to_92_reduction_in_COVID-19_mortality_rate_in_a_dose-response_manner_results_of_a_prospective_observational_study_of_a_strictly_controlled_/links/62cbf7a63bbe636e0c54cb5f/Regular-use-of-ivermectin-as-prophylaxis-for-COVID-19-led-up-to-92-reduction-in-COVID-19-mortality-rate-in-a-dose-response-manner-results-of-a-prospective-observational-study-of-a-strictly-controlled.pdf