Maybe mix his Ivermectin dose in with his applesauce.
I think that if he thought he was getting sick or knew he was exposed, he would take it. He’d be suspicious if I offered him applesauce because he doesn’t normally eat it. He has noticed that I have been taking it for two months and it hasn’t hurt me in any way so I think he would but not for prevention like I am. I keep talking about it and will mention him taking it for prevention pretty soon. COVID isn’t bad here right now but it will be back this winter for sure. He’s 83 with high BP and borderline Type2 Diabetes. I have asthma but otherwise I’m healthy and almost 20 years younger.