He has my prayers. Hang in thereI had it too and let me tell you it was not pleasant. My ex thought I was being a baby due to the symptoms and 5 years later she got it and apologized to me for her misjudging the situation. Once he recovers the only thing he should do is guard himself from sick people as much as he can because it is tough on the immune system for a while. Prayers sent and keep us updated. By the way I lost 30 pounds in 4 weeks due to vomiting and such. So give him a hug and Love him as much as you can.
I want to add not only your family but your friends. Larry