COVID-19 testing kits are tools used to determine if someone is infected with the SARS-CoV-2 virus, which causes COVID-19. These kits typically include a swab for collecting samples from the nose or throat, along with reagents that help detect the virus. Results can be available in a few minutes to several days, depending on the type of test. There are two main types of COVID-19 tests: PCR tests, which are highly accurate and analyze genetic material, and antigen tests, which detect specific proteins from the virus. Both types play a crucial role in managing the spread of the virus and ensuring public health safety.