Experts warn wildfire smoke could worsen COVID-19

Wildfires that have left parts of California and other western states with some of the worst air quality in the world are posing a major threat to people with asthma and other underlying health conditions who are already at greater risk of serious COVID-19 complications.Exposure to wildfire smoke can weaken immune systems and cause respiratory illnesses, and experts worry that combining those effects with the coronavirus could lead to more…