The FDA requires that Cytomegalovirus (CMV) testing be performed on anyone who intends to donate sperm. A positive result however, doesn’t necessarily mean that they will be ineligible to donate. Sperm banks will obtain semen samples from potential donors and then quarantine those specimens for at least six months. During that time, the donor's CMV antibody levels may be tested several times.
If the antibody tests indicate the possibility of a CMV infection close to the time of the sperm donation, or if testing is uncertain, the donor's specimen will not be accepted. However, if the donor tests positive for CMV IgG only, indicating a past infection, they will be allowed to donate. Those samples will be labeled in the sperm bank database as CMV positive.
If you test negative for CMV antibodies, you should consider choosing sperm from a donor who is also CMV negative