Cytomegalovirus (CMV) infection is a widespread condition in humans, reaching a prevalence of 50%-80% in adults from central Europe or North America (Onorato, Morens, Martone, & Stansfield, 1985). Since the sexual intercourse does not seem to be a frequent mode of transmission, the oral and respiratory spreads during childhood and probably adulthood appear to be the major way. Following the primary stage of infection, the patients hold the virus in a quiescent state in various tissue cell types for the rest of their life, with intermittent secretions, such as urine, blood, faeces, tears, saliva, breast milk or cervical mucus (Sinzger, Plachter, GreRe, The, & Jahn, 1996). Furthermore, previous studies showed that CMV can be detected also in semen samples, up to 32.7% of men, constituting a reservoir for transmission, although the overall prevalence of CMV DNA finding in seminal fluid seems to be