What is the difference between SARS-CoV-2 and COVID-19?

Far-UVC effectively inactivates SARS-CoV-2 and therefore protects people from becoming ill with COVID-19.

SARS-CoV-2, which stands for Severe Acute Respiratory Syndrome Coronavirus 2, is the specific virus responsible for causing the global pandemic known as COVID-19. COVID-19, short for Coronavirus Disease 2019, is the illness that occurs as a result of being infected with SARS-CoV-2. The name "COVID-19" is derived from "CO" for Corona, "VI" for Virus, "D" for Disease, and "19" signifying the year the virus was first identified, in 2019.