Does asthma increase Covid-19 risk? Emerging research suggests a complicated connection
A growing body of research on Covid-19 suggests that the virus’ link to asthma is far more complex than experts might have anticipated.
Early in the pandemic, researchers racing to identify the conditions common among the sickest patients zeroed in on lung conditions, including asthma. A potential link seemed possible: The virus that causes Covid-19 can lead to severe lung inflammation, and other viruses can set off dangerous asthma attacks. But emerging research — including a recent retrospective analysis of Covid-19 patients in 10 hospitals — has complicated the picture of the connection between asthma and critical cases of Covid-19.
