[OutsiderFan]

Isn't there a difference between those exposed to air pollution developing asthma that makes dealing with Covid-19 more difficult, and Covid-19 being more difficult to deal with in polluted air for someone without asthma? Correlation vs. causation?

[OutsiderFan]

Isn't there a difference between those exposed to air pollution developing asthma that makes dealing with Covid-19 more difficult, and Covid-19 being more difficult to deal with in polluted air for someone without asthma? Correlation vs. causation?