No, Ivermectin is used for all phases of Covid 19 including prevention for Covid 19. You must not be keeping up and are basing your opinion on antiquated information. Ivermectin uses are evolving.
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"Meta-analyses based on 18 randomized controlled treatment trials of ivermectin in COVID-19 have found large, statistically significant reductions in mortality, time to clinical recovery, and time to viral clearance. Furthermore, results from numerous controlled prophylaxis trials report significantly reduced risks of contracting COVID-19 with the regular use of ivermectin.
Finally, the many examples of ivermectin distribution campaigns leading to rapid population-wide decreases in morbidity and mortality indicate that an oral agent effective in all phases of COVID-19 has been identified."
My statement was that ivermectin is not commonly used as a preventative in Africa, certainly not enough to account for the favorable experience of hundreds of millions of black people in a tropical climate.
I stand by it.