: The SARS-CoV-2 virus enters cells via a receptor called ACE2 . In many people with allergic asthma, the expression of this receptor is naturally lower, giving the virus fewer "doors" to enter through.
: Daily maintenance with inhaled corticosteroids (ICS) —the standard treatment for asthma—may reduce the body's inflammatory response to the virus, potentially preventing the "cytokine storms" that lead to severe illness. A Note of Caution: Control is Key Asthma May Not Boost Odds of Severe COVID-19
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