The coronavirus consists of four key structural proteins, that is, membrane (M), nucleocapsid (N), envelope (E), and spike (S) proteins, which are responsible differently for its infection.[132, 133, 134] To enter a host cell, the S1 subunit in the S protein interacts with the angiotensin I converting enzyme 2 (ACE2) on the cell membrane, providing a therapeutic target for the treatment of COVID‐19 infection. The gene discussed is ACE2; the disease is infection.