The comments section of the "Open Letter to Health Minister About Ivermectin…" has a link to this very interesting article.
I find the comments sections have lots of gems by people who have researched and share their information
Breakthrough Drug: Ivermectin Shows 'Astounding' Results Against Coronavirus
"The drug first emerged as a possible coronavirus therapeutic after a study to be published in next month’s Antiviral Research journal by researchers in Victoria, Australia showed the drug wiped out the virus in a test tube."
https://www.newsmax.com/us/ivermectin-drug-virus/2020/05/22/id/968688/