Does allergic rhinitis impact the susceptibility of
SARS-CoV-2 infection?
There are no conclusive data on the impact of allergic rhinitis on
COVID-19 susceptibility116. However, a recent study
with 24 allergic rhinitis patients demonstrated a reduction of ACE2
expression in nasal brush samples following an allergen
challenge.46 Also, this study reported lower
ACE2-expression in the epithelium of asthmatic patients. Altogether,
these data suggest that allergic rhinitis patients may have lower risk
of SARS-CoV-2 infection as compared to non-allergic individuals, but
further studies are needed.