The Cytomegalovirus (CMV) DNA PCR – Qualitative test is a molecular diagnostic test that detects the presence of CMV DNA in a patient’s blood or tissue sample. CMV is a virus that can cause severe illness in people with weakened immune systems, such as transplant recipients or people living with HIV. The test works by amplifying the CMV DNA in the sample and detecting it using specific probes. This test is highly sensitive and specific and can be used to diagnose active CMV infection, monitor the response to treatment, and assess the risk of CMV disease in high-risk patients. The test is particularly useful for patients who have received organ transplants or bone marrow transplants, as they are at a higher risk of developing CMV infection.