Cytomegalovirus (CMV) is a common virus belonging to the herpesvirus family that infects people of all ages. Most infections are asymptomatic or result in mild illness, but it can cause serious complications in individuals with weakened immune systems, such as transplant recipients or people with HIV/AIDS. CMV is typically transmitted through close contact with bodily fluids, such as urine, saliva, or blood. Research on cytomegalovirus focuses on understanding its pathogenesis, developing diagnostic tests, and exploring potential treatment options, including antiviral medications and vaccines. Additionally, studies aim to evaluate the impact of CMV infection on various populations, such as pregnant women and newborns. Overall, research on cytomegalovirus is critical for improving prevention, diagnosis, and management of this common viral infection.