https://www.dailymail.co.uk/health/article-8246939/French-researchers-plan-nicotine-patches-coronavirus-patients-frontline-workers.html
One study in China, where the pandemic began, showed only 6.5 per cent of COVID-19 patients were smokers, compared to 26.6 per cent of the population.
Another study, by the Centers for Disease Control in the US, found just 1.3 per cent of hospitalised patients were smokers - compared to 14 per cent of America.