Being the sort of sad person that I am, I was reading a medical report on MERS patients from the outbreak a few years ago. I noted that the medics were seeing significant (20-30%) loss of lung function even ten years after recovery from respiratory distress syndrome and pneumonia. Lung fibrosis was frequently seen owing to incomplete clearance of cell debris and other muck from the alveoli. Irrespective of the impact on longevity and quality of life. It struck me that this would be a major risk factor for diving (question 6 on the medical form). May well see a lot of diving kit coming up for sale in the next few months Keep safe out there folks and keep your distance from each other.