COVID-19 (coronavirus disease 2019) is a disease caused by the SARS-CoV-2 virus. The SARS-CoV-2 virus is constantly undergoing small genetic changes, these changes lead to new variants.
An Official West Virginia Government Website An Official West Virginia Government WebsiteCOVID-19 (coronavirus disease 2019) is a disease caused by the SARS-CoV-2 virus. The SARS-CoV-2 virus is constantly undergoing small genetic changes, these changes lead to new variants.