ey disease patients might be protected from COVID-19 as for asthma patients.

2. ACE2-mediated SARS-CoV and SARS-CoV-2 Infections
Angiotensin-converting enzyme 2 (ACE2) was identified as a receptor for the spike (S) protein of SARS-CoV, finally facilitating viral entry into target cells [13]. ACE2 is abun