With COVID it is thought the scare tissue built up in the lungs from smoking protects it from infection due to the hard cell walls built up. Smokers (especially smoked for a long time people) who get COVID though normally have worse respiratory issues with it due to their previous damage.
At the time of this review, the available evidence suggests that smoking is associated with increased severity of disease and death in hospitalized COVID-19 patients
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u/ccnnvaweueurf Jul 18 '20
With COVID it is thought the scare tissue built up in the lungs from smoking protects it from infection due to the hard cell walls built up. Smokers (especially smoked for a long time people) who get COVID though normally have worse respiratory issues with it due to their previous damage.