Thank you so much for letting us know, and I wish you and your family a speedy recovery!
I'm really glad that they gave you IVIG immediately, and ahead of the two-week cycle. Even if it wouldn't have helped -- which it probably did -- it wouldn't have hurt. And in these situations, speed is of the essence. I know of too many cases where doctors give IVIG as a last resort, days into an episode, and it came too little, too late, to make a difference.
If you could arrange for any saved episode blood (namely, from Thursday and Friday before you got IVIG) to the be sent by the hospital to Dr. Druey, I'm sure he would really appreciate it. You can give them his information or else you can email him about it today, so he may provide the crucial shipping and delivery details to the right person.
Please give us an update later this week. Your experience has the potential to give the rest of us much-needed hope in case of eventual exposure to Covid-19.