Well in the end it seems my daughter found the actual source for them catching the virus. The Daughter of one of her girl friends apparently caught it at a summer camp, then her mom got it and her boy friend. She came over to help my Daughter unpack and organize after their move. It then spread to my Daughter and SiL. BTW I was also exposed as well as my wife, but we are okay after two weeks.

I also suppose the symptoms are quite varied, the only common symptoms were loss of smell and taste. So I conclude as many have said, there was no negative side effects from Ivermectin, just different symptoms from all infected.

One of my favorite sayings besides "One Truth... many realities" is "Nothing is ever easy".