I understand that 2/3 of patients admitted to ICU will need ventilation (usually within 24 hours)
Of those ventilated, around 60% will die.
So better than 50/50
He has 'relative' youth on his side although I am sure he has diet and stress against him, these are not underlying health conditions.
Everything crossed. It has made me feel more anxious than any other development and he has, I believe, been doing his best to be positive and encouraging in his daily address. I hope he recovers well and soon.