There is this small test done in a hospital system in Argentina last year. The data was published in November of 2020.
The simple version is:
800 staff members given Ivermectin, ZERO got Covid
400 staff members not given Ivermectin, about HALF got Covid
I don’t think you have to measure with a micrometer to see that there is something good going on with Ivermectin vs. Covid.
This is the link to the test they did, it is a pdf that downloads automatically:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8088823/
French Nursing home, median age 90
https://c19ivermectin.com/bernigaud.html
Canadian nursing home, accidental discovery
https://covidiscurable.com/covid19-ivermectin-saved-lives-in-toronto-nursing-home-pandemic-protection-turning-point/