COVID-19 testing is a process used to determine if a person is infected with the SARS-CoV-2 virus, which causes the COVID-19 disease. There are different types of tests, including PCR tests, which detect the virus's genetic material, and antigen tests, which identify specific proteins from the virus. Testing can help identify infected individuals, even if they do not show symptoms, and is crucial for controlling the spread of the virus. Testing is typically conducted at hospitals, clinics, or designated testing sites. Individuals may need to provide a sample through a nasal swab or saliva collection. Results can take anywhere from a few minutes to several days, depending on the type of test and the testing facility. Regular testing is recommended for those who may have been exposed to the virus or are experiencing symptoms.