Re: 'rona progression tree
There's a first branch on this particular tree- whether he actually has it or not.
But assuming he does, he has reportedly advanced the first 50% probability to symptomatic.
From there, 20% probability of hospitalization, typically 8-10 days after onset.
Then 15% probability of advancing to critical
and 50-65% chance of fatality from there, generally 3-4 weeks after onset.
Although that's the average. Undoubtedly worse for an obese and sedentary 74 year old male with likely neurological pre-existing condition.