That study you cited does not make any claims that ivermectin reduces Covid symptoms in humans. The research claims efficacy in "clinical isolate in vitro." Just because something works in a petri dish does not mean it will work in humans.
I am watching the antiviral studies closely. Maybe they can find a way to get ivermectin not to cross the blood brain barrier at the high enough dosages needed to attack Covid. But since Merck has abandoned the ivermectin research for other antiviral solutions, don't expect this one to be our miracle cure. Follow the money.
Either way, we have a successful vaccine that is about to get FDA approval yet there are people using a non-FDA approved drug for Covid that could cause irreversible side effects.
The real contagion is stupidity.