Argentina has extensive medical experience with ivermectin. Before the COVID-19 pandemic, it was used to treat dengue fever, which is endemic in Argentina.
Early in the pandemic, Dr. Hector Carvallo, a retired medical professor in Argentina, devised two ivermectin trials to assess the drug’s usefulness against SARS-CoV-2. His treatment protocols are used in five Argentinian provinces. In one province, the death rate was reduced to one-third in less than a month, in the middle of the outbreak