I know a couple in their 60's that got it. Their son in his 30 also got it.
The father and son work together, they were mild cases, cough and fever.
The mother didn't do so good. She was in the hospital almost a month.
After she got out, she was on O2 for a while at home.
No rhyme or reason as to why one got it worse than the others?
I think age, immune system and health issues can make it worse for a person.
My dads good friend was one if the first I knew personally, that died from it.
He was in the hospital on a ventilator for almost 3 weeks before he died.
He never recovered in the least little bit once he caught it.