millions of people and killing thousands. It is caused by the SARS-CoV-2 virus, which
emerged at the end of 2019 in Wuhan, China, quickly spreading worldwide. COVID-19 is a
disease with symptoms that range from fever and breathing difficulty to acute respiratory
distress and death, critically affecting older patients and people with previous comorbidities.
SARS-CoV-2 uses the angiotensin-converting enzyme 2 (ACE2) receptor and mainly …