I would be interested in how this skews towards people who already have lung problems.
I suspect the high rates of smoking among Chinese men have a lot to do with the mortality rate of a primarily respiratory illness.
Smokers get sick faster, and many do not recover.
China has many smokers, and virtually all Italians smoke.
I am very worried about my granddaughter and her husband in Italy.
They live in the North ...Turin. She works in Milan. He works in a Turin hospital.
Both are smokers and have been smoking a pack a day for twenty years.