Or is it more about smoking? That could mean that standing around a campfire is better for you, in regards to COVID. The article mentions nitric oxide. Smoking

Or is it more about smoking? That could mean that standing around a campfire is better for you, in regards to COVID. The article mentions nitric oxide. Smoking also reduces the amount of oxygen inhaled by anyone smoking. Perhaps COVID needs clean air, or oxygen rich air. Conversely, I thought one of the theories for Italy experiencing high problems(mortality) with COVID, was the preponderance is smokers. Then again, there were reports last year, of air pollution as contributor to severity. It will be interesting to see what we learn five years from, when we have been able to look at more complete data sets.