Viral testing is a medical procedure used to detect the presence of viruses in a person's body. This testing is crucial for diagnosing infections, such as those caused by the COVID-19 virus or the influenza virus. Samples are typically collected from the nose, throat, or other bodily fluids and analyzed in a laboratory to identify viral genetic material or proteins. There are different types of viral tests, including PCR tests, which amplify viral RNA for accurate detection, and antigen tests, which identify specific viral proteins. The results help healthcare providers determine the appropriate treatment and control the spread of infections in the community.