” 2 weeks after visiting Walt Disney World and Universal Studios in Florida ...”
He flew om 3/2 for a week conference and stayed on for vacation so the earliest would be ONE week.
Coughing. on first visit and blood on second day, most likely.
Sounds like the conference was only a few days if he visited Disney later that week. Coughing by the 7th, coughing blood on 8th, flies home and seeks medical help (for the 1st time) on 9th, deteriorates/hospitalized/ventilated on 14th, passes on 19th, about 2 weeks after first symptoms.